The government has put many special rubbish bins with glass and metal recycling signs in public places to get people to recycle waste like glass bottles and metal cans.
政府在公共场所放置了许多带有玻璃和金属回收标志的特殊垃圾箱，让人们回收玻璃瓶和金属罐等垃圾。
2
Actually, the operation of plain bearings doesn't involve metaltometal contact!
实际上轴承运转时不涉及金属对金属的接触！
3
There is no metal - to - metal contact, therefore gate galling is impossible.