问题：位于中央位置的门牙是非常容易受到腐蚀的，而下颚的门牙则直接则特别容易遭受磨损。
PROBLEMS: The central incisors are most vulnerable, but those in the lower jaw are particularly affected by teeth grinding, which 8 per cent of us do unconsciously.
环氧地坪的日常的使用时会造成一些磨损和破坏，所以我们一定主要一些使用事项，不要重压，不要使用带腐蚀性的东西，各种叉车、液压车的使用频率等。
When daily use will cause some wear and tear epoxy floor, so we must use some of the main issues, do not stress, do not use corrosive stuff, all kinds of forklifts, hydraulic car use frequency.
重型、铸造304或316不锈钢阀体具有很强的耐腐蚀耐磨损性能，能够经受最恶劣的液体泥浆和干燥物体介质的处理应用场合。
The heavy duty, cast 304, 316 stainless steel body provides corrosion and abrasion resistance on the toughest liquid slurry and dry material handling applications.
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