casehardening的意思？

v.
使无情，使表面硬化( caseharden的现在分词 )

相关问题

casehardening例句

Casehardening is used more than the other methods in aircraft work.在飞机制造中,渗碳法比其它方法用得更普遍....
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casehardening的音标？

casehardening的音标：...
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- #发音