结果表明，采用新的电镀方法能避免镀铬层裂纹的产生；并能获得表面平整光亮的镀铬层，降低表面粗糙度。
The results show that the novel method can prevent chromium coating from cracking, gain bright and smooth deposit, and reduce the surface roughness.
光纤槽道能承受规定条件下的老化、冲击试验。试验后，试样不产生裂纹或脆断；
After the stated conditions of aging, impact test, the sample doesn't crack or brittle fracture.
本品是一种高分子涂料，可适应基层微小变形，能起到遮蔽裂纹和抑制表面产生裂纹作用，且防水层具有较好的整体。
This product is a polymer coating, can adapt to the grass-toots small deformation, can play a shelftered cracks and curb the role of the surface cracks, and the waterproof layer has good overall.
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