Cotton mop head also a big advantage is the product of low shrinkage, low shrink performance guarantee products Cotton yarn mop head after use in a long time, but also no distortion.
The main reason of leakage in cylinder block and head was analyzed, and the formation mechanism and influencing factor of shrinkage was revealed.
分析了目前发动机缸体、缸盖渗漏缺陷的主要原因，缩松的形成及影响因素。
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Comparatively, with the reducing of shrinkage ratio of slit, the shock loads of receiving pool reduce, but the critical hydraulic head that just can cause deflecting heightens simultaneously.