shell quality造句

例句与造句

1. Shell quality was restored by September 1915, but never to the full exacting standards of pre-war manufacture.
2. In order to increase shell production from 20, 000 rounds per day to 100, 000 in 1915, the government turned to civilian contractors, and, as a result, shell quality deteriorated.
3. It's difficult to find shell quality in a sentence. 用shell quality造句挺难的