酒(Jiu)泉(Quan)岩(Yan)棉(Mian)托(Tuo)架(Jia)报(Bao)价(Jia),岩(Yan)棉(Mian)托(Tuo)架(Jia)销(Xiao)售(Shou)
2022-09-26 来(Lai)自(Zi): 甘(Gan)肃(Su)亿(Yi)能(Neng)君(Jun)展(Zhan)建(Jian)材(Cai)销(Xiao)售(Shou)有(You)限(Xian)公(Gong)司(Si) 浏(Liu)览(Lan)次(Ci)数(Shu):555
甘(Gan)肃(Su)亿(Yi)能(Neng)君(Jun)展(Zhan)建(Jian)材(Cai)销(Xiao)售(Shou)有(You)限(Xian)公(Gong)司(Si)为(Wei)您(Nin)提(Ti)供(Gong)酒(Jiu)泉(Quan)岩(Yan)棉(Mian)托(Tuo)架(Jia)报(Bao)价(Jia)相(Xiang)关(Guan)信(Xin)息(Xi),岩(Yan)棉(Mian)板(Ban)托(Tuo)架(Jia)型(Xing)和(He)圆(Yuan)孔(Kong)。(?)组(Zu)合(He)孔(Kong)型(Xing)有(You)三(San)种(Zhong)一(Yi)是(Shi)圆(Yuan)的(De);二(?)是(Shi)长(Chang)的(De);三(San)是(Shi)直(Zhi)的(De)。(?)圆(Yuan)孔(Kong)大(Da)小(Xiao)一(Yi)般(Ban)在(Zai)20mm左(Zuo)右(You),(?)圆(Yuan)孔(Kong)小(Xiao)于(Yu)10mm时(Shi),(?)就(Jiu)称(Cheng)为(Wei)保(Bao)温(Wen)板(Ban)。(?)圆(Yuan)筒(Tong)形(Xing)保(Bao)温(Wen)板(Ban)由(You)于(Yu)其(Qi)厚(Hou)度(Du)大(Da)、(?)重(Zhong)量(Liang)轻(Qing)等(Deng)特(Te)点(Dian),(?)在(Zai)室(Shi)外(Wai)使(Shi)用(Yong)中(Zhong)也(Ye)很(Hen)受(Shou)欢(Huan)迎(Ying)。(?)这(Zhe)类(Lei)保(Bao)温(Wen)板(Ban)可(Ke)用(Yong)于(Yu)墙(Qiang)面(Mian)防(Fang)水(Shui)、(?)防(Fang)霉(Mei)、(?)防(Fang)潮(Chao)等(Deng)方(Fang)面(Mian)。(?)这(Zhe)类(Lei)保(Bao)温(Wen)板(Ban)在(Zai)室(Shi)外(Wai)使(Shi)用(Yong)中(Zhong),(?)由(You)于(Yu)其(Qi)厚(Hou)度(Du)大(Da),(?)其(Qi)抗(Kang)拉(La)强(Qiang)度(Du)也(Ye)较(Jiao)高(Gao)。(?)这(Zhe)种(Zhong)保(Bao)温(Wen)板(Ban)采(Cai)用(Yong)的(De)主(Zhu)要(Yao)材(Cai)料(Liao)是(Shi)聚(Ju)氯(Lu)乙(Yi)烯(Xi)。(?)聚(Ju)氯(Lu)乙(Yi)烯(Xi)在(Zai)室(Shi)内(Nei)有(You)的(De)应(Ying)力(Li)作(Zuo)用(Yong),(?)因(Yin)此(Ci)它(Ta)的(De)耐(Nai)腐(Fu)蚀(Shi)性(Xing)能(Neng)好(Hao)。(?)但(Dan)是(Shi),(?)由(You)于(Yu)它(Ta)的(De)结(Jie)构(Gou)复(Fu)杂(Za)、(?)工(Gong)艺(Yi)难(Nan)度(Du)大(Da)、(?)使(Shi)用(Yong)寿(Shou)命(Ming)短(Duan)等(Deng)特(Te)点(Dian),(?)因(Yin)而(?)很(Hen)容(Rong)易(Yi)发(Fa)生(Sheng)漏(Lou)水(Shui)现(Xian)象(Xiang)。(?)由(You)于(Yu)这(Zhe)种(Zhong)保(Bao)温(Wen)板(Ban)是(Shi)在(Zai)室(Shi)内(Nei)使(Shi)用(Yong),(?)因(Yin)此(Ci),(?)它(Ta)的(De)应(Ying)力(Li)较(Jiao)大(Da)。(?)
酒(Jiu)泉(Quan)岩(Yan)棉(Mian)托(Tuo)架(Jia)报(Bao)价(Jia),岩(Yan)棉(Mian)板(Ban)托(Tuo)架(Jia)型(Xing)组(Zu)合(He)孔(Kong)型(Xing)的(De)孔(Kong)大(Da)小(Xiao)一(Yi)般(Ban)是(Shi)在(Zai)两(Liang)根(Gen)柱(Zhu)子(Zi)之(Zhi)间(Jian),(?)这(Zhe)样(Yang)就(Jiu)不(Bu)会(Hui)出(Chu)现(Xian)裂(Lie)缝(Feng),(?)但(Dan)如(Ru)果(Guo)用(Yong)圆(Yuan)孔(Kong)的(De)话(Hua),(?)可(Ke)能(Neng)会(Hui)造(Zao)成(Cheng)漏(Lou)水(Shui)。(?)组(Zu)合(He)孔(Kong)型(Xing)的(De)保(Bao)温(Wen)板(Ban)托(Tuo)架(Jia)是(Shi)采(Cai)用(Yong)高(Gao)强(Qiang)度(Du)钢(Gang)板(Ban)和(He)铝(Lu)塑(Su)复(Fu)合(He)材(Cai)料(Liao)相(Xiang)结(Jie)合(He)而(?)成(Cheng)。(?)组(Zu)合(He)孔(Kong)型(Xing)保(Bao)温(Wen)板(Ban)托(Tuo)架(Jia)采(Cai)用(Yong)了(Liao)高(Gao)强(Qiang)度(Du)钢(Gang)材(Cai)。(?)这(Zhe)种(Zhong)结(Jie)构(Gou)可(Ke)以(Yi)有(You)效(Xiao)地(Di)防(Fang)止(Zhi)外(Wai)墙(Qiang)砖(Zhuan)脱(Tuo)落(Luo)。(?)另(Ling)外(Wai)一(Yi)种(Zhong)是(Shi)高(Gao)强(Qiang)度(Du)钢(Gang)板(Ban)。(?)高(Gao)强(Qiang)度(Du)钢(Gang)板(Ban)是(Shi)用(Yong)于(Yu)防(Fang)止(Zhi)墙(Qiang)体(Ti)砖(Zhuan)脱(Tuo)落(Luo)的(De),(?)但(Dan)如(Ru)果(Guo)采(Cai)用(Yong)这(Zhe)种(Zhong)结(Jie)构(Gou),(?)则(Ze)会(Hui)造(Zao)成(Cheng)墙(Qiang)面(Mian)的(De)裂(Lie)缝(Feng)。(?)组(Zu)合(He)孔(Kong)型(Xing)保(Bao)温(Wen)板(Ban)托(Tuo)架(Jia)的(De)主(Zhu)要(Yao)特(Te)点(Dian)。(?),(?)它(Ta)能(Neng)够(Gou)有(You)效(Xiao)地(Di)防(Fang)止(Zhi)外(Wai)墙(Qiang)砖(Zhuan)脱(Tuo)落(Luo)。(?)在(Zai)建(Jian)筑(Zhu)物(Wu)的(De)外(Wai)立(Li)面(Mian)上(Shang)采(Cai)用(Yong)高(Gao)强(Qiang)度(Du)钢(Gang)板(Ban)和(He)铝(Lu)塑(Su)复(Fu)合(He)材(Cai)料(Liao)相(Xiang)结(Jie)合(He)而(?)成(Cheng)。(?)组(Zu)合(He)孔(Kong)型(Xing)保(Bao)温(Wen)板(Ban)托(Tuo)架(Jia)是(Shi)采(Cai)用(Yong)高(Gao)强(Qiang)度(Du)钢(Gang)材(Cai)和(He)铝(Lu)塑(Su)复(Fu)合(He)材(Cai)料(Liao)相(Xiang)结(Jie)合(He)而(?)成(Cheng)。(?)
岩(Yan)棉(Mian)托(Tuo)架(Jia)销(Xiao)售(Shou),岩(Yan)棉(Mian)板(Ban)托(Tuo)架(Jia)型(Xing)的(De)保(Bao)温(Wen)板(Ban)和(He)圆(Yuan)孔(Kong)。(?)组(Zu)合(He)孔(Kong)型(Xing)的(De)保(Bao)温(Wen)板(Ban)和(He)圆(Yuan)孔(Kong)是(Shi)不(Bu)同(Tong)的(De),(?)它(Ta)们(Men)是(Shi)用(Yong)钢(Gang)筋(Jin)水(Shui)泥(Ni)构(Gou)成(Cheng),(?)一(Yi)般(Ban)采(Cai)用(Yong)钢(Gang)筋(Jin)水(Shui)泥(Ni)作(Zuo)为(Wei)保(Bao)温(Wen)层(Ceng),(?)而(?)且(Qie)有(You)的(De)厚(Hou)度(Du)。(?)这(Zhe)种(Zhong)组(Zu)合(He)方(Fang)式(Shi)可(Ke)以(Yi)使(Shi)保(Bao)温(Wen)层(Ceng)在(Zai)高(Gao)速(Su)运(Yun)转(Zhuan)时(Shi),(?)能(Neng)够(Gou)很(Hen)好(Hao)地(Di)承(Cheng)受(Shou)压(Ya)力(Li)。(?)但(Dan)是(Shi)由(You)于(Yu)组(Zu)合(He)方(Fang)式(Shi)不(Bu)同(Tong)、(?)材(Cai)料(Liao)不(Bu)同(Tong)、(?)结(Jie)构(Gou)不(Bu)同(Tong)等(Deng)因(Yin)素(Su)导(Dao)致(Zhi)壁(Bi)厚(Hou)差(Cha)异(Yi)很(Hen)大(Da)。(?)组(Zu)合(He)孔(Kong)型(Xing)保(Bao)温(Wen)板(Ban)的(De)材(Cai)料(Liao)是(Shi)钢(Gang)筋(Jin)水(Shui)泥(Ni),(?)而(?)不(Bu)是(Shi)圆(Yuan)孔(Kong)。(?)组(Zu)合(He)孔(Kong)型(Xing)保(Bao)温(Wen)板(Ban)的(De)结(Jie)构(Gou)和(He)厚(Hou)度(Du)都(Du)比(Bi)较(Jiao)简(Jian)单(Dan)。(?)它(Ta)可(Ke)以(Yi)使(Shi)保(Bao)温(Wen)层(Ceng)在(Zai)高(Gao)速(Su)运(Yun)转(Zhuan)时(Shi)承(Cheng)受(Shou)压(Ya)力(Li),(?)也(Ye)可(Ke)以(Yi)使(Shi)用(Yong)圆(Yuan)管(Guan)作(Zuo)为(Wei)承(Cheng)重(Zhong)支(Zhi)撑(Cheng)。(?)这(Zhe)种(Zhong)结(Jie)构(Gou)具(Ju)有(You)很(Hen)好(Hao)的(De)抗(Kang)压(Ya)性(Xing)能(Neng)。(?)但(Dan)由(You)于(Yu)其(Qi)结(Jie)构(Gou)不(Bu)同(Tong)、(?)结(Jie)构(Gou)不(Bu)同(Tong)、(?)结(Jie)构(Gou)不(Bu)同(Tong)所(Suo)导(Dao)致(Zhi)壁(Bi)厚(Hou)差(Cha)异(Yi)很(Hen)大(Da)。(?)型(Xing)的(De)孔(Kong),(?)如(Ru)圆(Yuan)孔(Kong)、(?)长(Chang)孔(Kong)、(?)圆(Yuan)孔(Kong)和(He)椭(Tuo)圆(Yuan)形(Xing)的(De)孔(Kong)等(Deng)。(?)
外(Wai)墙(Qiang)保(Bao)温(Wen)板(Ban)托(Tuo)架(Jia)价(Jia)格(Ge),岩(Yan)棉(Mian)板(Ban)托(Tuo)架(Jia)型(Xing),(?)圆(Yuan)孔(Kong)大(Da)于(Yu)长(Chang)孔(Kong)小(Xiao)于(Yu)长(Chang)孔(Kong)。(?)组(Zu)合(He)孔(Kong)型(Xing)的(De)外(Wai)墙(Qiang)岩(Yan)棉(Mian)板(Ban)保(Bao)温(Wen)托(Tuo)架(Jia)是(Shi)用(Yong)热(Re)镀(Du)锌(Xin)板(Ban)经(Jing)过(Guo)裁(Cai)剪(Jian)压(Ya)制(Zhi)而(?)成(Cheng),(?)然(Ran)后(Hou)在(Zai)打(Da)孔(Kong)裁(Cai)切(Qie)成(Cheng)需(Xu)要(Yao)的(De)长(Chang)度(Du)。(?)这(Zhe)种(Zhong)保(Bao)温(Wen)材(Cai)料(Liao)可(Ke)以(Yi)用(Yong)来(Lai)作(Zuo)为(Wei)外(Wai)墙(Qiang)保(Bao)温(Wen)层(Ceng)。(?)在(Zai)国(Guo)内(Nei)还(Huan)没(Mei)有(You)使(Shi)用(Yong)。(?)但(Dan)是(Shi),(?)现(Xian)代(Dai)建(Jian)筑(Zhu)中(Zhong)已(Yi)经(Jing)普(Pu)遍(Bian)应(Ying)用(Yong)了(Liao)。(?)在(Zai)国(Guo)外(Wai)的(De)许(Xu)多(Duo)建(Jian)筑(Zhu)中(Zhong)都(Du)有(You)使(Shi)用(Yong)。(?)如(Ru)果(Guo)在(Zai)国(Guo)内(Nei),(?)这(Zhe)种(Zhong)保(Bao)温(Wen)层(Ceng)可(Ke)以(Yi)作(Zuo)为(Wei)外(Wai)墙(Qiang)保(Bao)温(Wen)层(Ceng)。(?)但(Dan)是(Shi),(?)目(Mu)前(Qian)还(Huan)没(Mei)有(You)一(Yi)种(Zhong)材(Cai)料(Liao)可(Ke)以(Yi)用(Yong)于(Yu)外(Wai)墙(Qiang)保(Bao)温(Wen)。(?)因(Yin)此(Ci),(?)我(Wo)们(Men)应(Ying)该(Gai)把(Ba)这(Zhe)个(Ge)题(Ti)提(Ti)高(Gao)到(Dao)一(Yi)个(Ge)新(Xin)的(De)高(Gao)度(Du)。(?)我(Wo)们(Men)应(Ying)该(Gai)从(Cong)建(Jian)筑(Zhu)设(She)计(Ji)上(Shang)去(Qu)解(Jie)决(Jue)。(?)第(Di)二(?)、(?)要(Yao)加(Jia)强(Qiang)对(Dui)建(Jian)筑(Zhu)设(She)计(Ji)的(De)指(Zhi)导(Dao)。(?)
金(Jin)属(Shu)岩(Yan)棉(Mian)板(Ban)托(Tuo)架(Jia)销(Xiao)售(Shou),由(You)于(Yu)这(Zhe)些(Xie)保(Bao)温(Wen)板(Ban)是(Shi)采(Cai)用(Yong)不(Bu)锈(Xiu)钢(Gang)材(Cai)料(Liao)制(Zhi)造(Zao)而(?)成(Cheng)。(?)在(Zai)我(Wo)国(Guo),(?)保(Bao)温(Wen)板(Ban)的(De)使(Shi)用(Yong)量(Liang)也(Ye)很(Hen)大(Da)。(?)目(Mu)前(Qian),(?)我(Wo)们(Men)保(Bao)温(Wen)板(Ban)的(De)生(Sheng)产(Chan)主(Zhu)要(Yao)是(Shi)以(Yi)钢(Gang)材(Cai)为(Wei)主(Zhu)。(?)目(Mu)前(Qian),(?)国(Guo)内(Nei)市(Shi)场(Chang)上(Shang)保(Bao)温(Wen)板(Ban)主(Zhu)要(Yao)是(Shi)以(Yi)热(Re)镀(Du)锌(Xin)板(Ban)为(Wei)主(Zhu)。(?)我(Wo)们(Men)现(Xian)在(Zai)使(Shi)用(Yong)的(De)是(Shi)冷(Leng)镀(Du)锌(Xin)板(Ban),(?)这(Zhe)样(Yang)的(De)材(Cai)料(Liao)在(Zai)热(Re)镀(Du)锌(Xin)板(Ban)上(Shang)加(Jia)工(Gong)出(Chu)来(Lai)后(Hou),(?)不(Bu)但(Dan)能(Neng)够(Gou)保(Bao)证(Zheng)房(Fang)间(Jian)内(Nei)外(Wai)温(Wen)差(Cha)很(Hen)小(Xiao),(?)而(?)且(Qie)还(Huan)具(Ju)有(You)很(Hen)好(Hao)的(De)隔(Ge)热(Re)性(Xing)。(?)目(Mu)前(Qian),(?)国(Guo)内(Nei)已(Yi)经(Jing)开(Kai)始(Shi)进(Jin)入(Ru)了(Liao)保(Bao)温(Wen)板(Ban)生(Sheng)产(Chan)阶(Jie)段(Duan)。(?)随(Sui)着(Zhuo)我(Wo)国(Guo)建(Jian)筑(Zhu)业(Ye)的(De)发(Fa)展(Zhan)和(He)人(Ren)民(Min)生(Sheng)活(Huo)水(Shui)平(Ping)提(Ti)高(Gao)。(?)中(Zhong)国(Guo)将(Jiang)进(Jin)入(Ru)工(Gong)业(Ye)化(Hua)阶(Jie)段(Duan)。(?)随(Sui)着(Zhuo)人(Ren)民(Min)生(Sheng)活(Huo)水(Shui)平(Ping)和(He)居(Ju)住(Zhu)条(Tiao)件(Jian)提(Ti)高(Gao)。(?)
这(Zhe)样(Yang)做(Zuo)的(De)好(Hao)处(Chu)是(Shi)保(Bao)温(Wen)板(Ban)材(Cai)不(Bu)会(Hui)对(Dui)室(Shi)内(Nei)空(Kong)气(Qi)造(Zao)成(Cheng)污(Wu)染(Ran);可(Ke)以(Yi)使(Shi)外(Wai)墙(Qiang)壁(Bi)表(Biao)面(Mian)的(De)保(Bao)护(Hu)层(Ceng)厚(Hou)度(Du)更(Geng)薄(Bao)。(?)方(Fang)形(Xing)。(?)在(Zai)保(Bao)温(Wen)板(Ban)材(Cai)中(Zhong)加(Jia)入(Ru)了(Liao)量(Liang)的(De)硅(Gui)橡(Xiang)胶(Jiao),(?)能(Neng)使(Shi)外(Wai)墙(Qiang)面(Mian)表(Biao)面(Mian)的(De)强(Qiang)度(Du)大(Da)大(Da)提(Ti)高(Gao)。(?)这(Zhe)种(Zhong)方(Fang)法(Fa)适(Shi)用(Yong)于(Yu)建(Jian)筑(Zhu)物(Wu)内(Nei)部(Bu),(?)可(Ke)用(Yong)于(Yu)门(Men)窗(Chuang)、(?)玻(Bo)璃(Li)幕(Mu)墙(Qiang)、(?)楼(Lou)梯(Ti)等(Deng)。(?)方(Fang)块(Kuai)。(?)在(Zai)外(Wai)墙(Qiang)壁(Bi)上(Shang)加(Jia)一(Yi)层(Ceng)保(Bao)护(Hu)层(Ceng)后(Hou),(?)可(Ke)以(Yi)使(Shi)内(Nei)部(Bu)空(Kong)气(Qi)流(Liu)通(Tong)。(?)这(Zhe)种(Zhong)方(Fang)法(Fa)适(Shi)用(Yong)于(Yu)楼(Lou)梯(Ti)、(?)电(Dian)梯(Ti)等(Deng)建(Jian)筑(Zhu)物(Wu)内(Nei)部(Bu)。(?)这(Zhe)种(Zhong)方(Fang)法(Fa)适(Shi)用(Yong)于(Yu)楼(Lou)宇(Yu)、(?)地(Di)下(Xia)车(Che)库(Ku)和(He)大(Da)型(Xing)公(Gong)共(Gong)设(She)施(Shi)等(Deng)建(Jian)筑(Zhu)物(Wu)。(?)在(Zai)室(Shi)内(Nei)空(Kong)间(Jian)中(Zhong)加(Jia)入(Ru)量(Liang)的(De)硅(Gui)橡(Xiang)胶(Jiao),(?)能(Neng)使(Shi)外(Wai)墙(Qiang)面(Mian)表(Biao)面(Mian)的(De)强(Qiang)度(Du)大(Da)大(Da)提(Ti)高(Gao)。(?)
保(Bao)温(Wen)材(Cai)料(Liao)
- 挤(Ji)塑(Su)板(Ban)
- 岩(Yan)棉(Mian)板(Ban)
- 外(Wai)墙(Qiang)保(Bao)温(Wen)砂(Sha)浆(Jiang)
- 网(Wang)格(Ge)布(Bu)
- 保(Bao)温(Wen)钉(Ding)
- 岩(Yan)棉(Mian)板(Ban)托(Tuo)架(Jia)
- 硅(Gui)铝(Lu)基(Ji)保(Bao)温(Wen)板(Ban)
- 真(Zhen)金(Jin)板(Ban)
- 硅(Gui)酸(Suan)铝(Lu)
- 岩(Yan)棉(Mian)管(Guan)
- 聚(Ju)氨(An)酯(Zhi)板(Ban)
- 聚(Ju)氨(An)酯(Zhi)管(Guan)
- 聚(Ju)苯(Ben)板(Ban)
- 水(Shui)泥(Ni)发(Fa)泡(Pao)
- 玻(Bo)璃(Li)棉(Mian)制(Zhi)品(Pin)
- 聚(Ju)氨(An)酯(Zhi)制(Zhi)品(Pin)
- 防(Fang)水(Shui)材(Cai)料(Liao)
- 橡(Xiang)塑(Su)制(Zhi)品(Pin)
保(Bao)温(Wen)材(Cai)料(Liao)
- 挤(Ji)塑(Su)板(Ban)
- 岩(Yan)棉(Mian)板(Ban)
- 外(Wai)墙(Qiang)保(Bao)温(Wen)砂(Sha)浆(Jiang)
- 网(Wang)格(Ge)布(Bu)
- 保(Bao)温(Wen)钉(Ding)
- 岩(Yan)棉(Mian)板(Ban)托(Tuo)架(Jia)
- 硅(Gui)铝(Lu)基(Ji)保(Bao)温(Wen)板(Ban)
- 真(Zhen)金(Jin)板(Ban)
- 硅(Gui)酸(Suan)铝(Lu)
- 岩(Yan)棉(Mian)管(Guan)
- 聚(Ju)氨(An)酯(Zhi)板(Ban)
- 聚(Ju)氨(An)酯(Zhi)管(Guan)
- 聚(Ju)苯(Ben)板(Ban)
- 水(Shui)泥(Ni)发(Fa)泡(Pao)
- 玻(Bo)璃(Li)棉(Mian)制(Zhi)品(Pin)
- 聚(Ju)氨(An)酯(Zhi)制(Zhi)品(Pin)
- 防(Fang)水(Shui)材(Cai)料(Liao)
- 橡(Xiang)塑(Su)制(Zhi)品(Pin)
挤(Ji)塑(Su)板(Ban)知(Zhi)识(Shi)
- 购(Gou)买(Mai)兰(Lan)州(Zhou)岩(Yan)棉(Mian)板(Ban)时(Shi)应(Ying)该(Gai)考(Kao)虑(Lu)哪(Na)些(Xie)因(Yin)素(Su)?(?)
- 如(Ru)何(He)选(Xuan)购(Gou)质(Zhi)量(Liang)好(Hao)的(De)甘(Gan)肃(Su)岩(Yan)棉(Mian)板(Ban)?(?)
- 兰(Lan)州(Zhou)挤(Ji)塑(Su)板(Ban)的(De)安(An)装(Zhuang)方(Fang)法(Fa)和(He)注(Zhu)意(Yi)事(Shi)项(Xiang)
- 如(Ru)何(He)选(Xuan)择(Ze)适(Shi)合(He)的(De)甘(Gan)肃(Su)挤(Ji)塑(Su)板(Ban)型(Xing)号(Hao)和(He)厚(Hou)度(Du)?(?)
- 甘(Gan)肃(Su)挤(Ji)塑(Su)板(Ban)的(De)粘(Zhan)贴(Tie)时(Shi)应(Ying)注(Zhu)意(Yi)以(Yi)下(Xia)四(Si)点(Dian)