寿命经过4个大循环单元后，铅基合金腐蚀断裂，而复合钛拉网板栅仍然完好，没有明显腐蚀，只是活性物质有些脱落。
After 4 cycles, the Pbbased alloy grid is broken whereas the composite ti expand grid is in good condition and has no obvious corrosion except the little shedding of active material.
有些奶牛生病时角就脱落了。
所有横面上盖的棕色乙烯基塑料有些地方开始脱落了。
The brown vinyl covering all the horizontal surfaces is coming unstuck in several places.
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