sheet crack theory 板裂介质
Sheet crack rockmass 板裂围岩
elliptic sheet crack 椭圆形片状裂纹
rock mass with sheet crack 板裂介质岩体
through-sheet-thickness crack 板材劈裂 ; 板材开裂
crack sheet 裂纹板
Gold can be pounded into a sheet so thin that light passes through it, yet the sheet doesn't crack.
它可以被压成薄薄的一片，薄到透光却不会断裂。
Led to many PC plank crack elements, the main sheet and the methods, materials, construction and other aspects of the contact is larger.
致使PC板材开裂的要素有许多，主要和板材的方案、选材、施工等方面的联络比较大。
Practice proved that technical reconstruction can prevent effectively the crack of exchanger tube sheet, and prolonged the service life of exchanger.
实践证明，该技术改造能有效的防止换热器管板的开裂，延长了换热器的使用寿命。
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