as customary造句

例句与造句

1. This burning is a method of treatment which is regarded as customary in the trade , but the raw stones must be as free of inclusions as possible , since otherwise fissures may occur
   加热处理法在宝石业界是被认同的，但是原石必须尽量是无内含物或瑕疵，否则加热过程中将会导致裂缝产生。
2. It's difficult to find as customary in a sentence. 用as customary造句挺难的