简述了绵羊皮白色靴筒革蓝湿革的鞣前处理、漂白、复鞣等加工工艺技术要点。

The key points of technology in making the white sheepskin boot-shoe leather, such as pretreatment bleaching and retanning were discussed.

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问：把装食物、饮料的罐头筒放进回收箱前是不是要洗干净才行？我们用的这些罐头筒到底有几成真正被回收？

Does it matter whether or not I wash out food and drinks cans before putting them in the recycling box - and what proportion of all those cans we use is actually recycled?

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实施筒体的焊接工艺前，必须验证焊接接头的使用性能，从而证明压力容器筒体焊接工艺的重要性。

Welding joints must be certified before implementation of the welding process, thereby, the improvement of the welding process on barrel of pressure vessel is proved.

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