介绍了一种金属粉末样品的金相制样方法。
In this article a method of sample preparation of metal powder is introduced.
汞还有另外一个问题,就是在制样时候的损失。
什么样的企业应该采用权责发生制核算法,通常存在争议。
There is always a debate on who should use the accrual method of accounting.
幼儿教育和九年义务制教育一样重要。
Preschool education is as important as nine-year compulsory education.
幼儿教育和九年义务制教育一样重要。
Preschool education is as important as nine-year compulsory education.
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