single-action的用法和樣例：
詞匯搭配
- single action 單作用(單效...
- single action line 單向作用線(xiàn)路...
- single action press 單動(dòng)壓力機,單壓頭式...
- single action printer 單作用打印機...
- single action pressing 單動(dòng)壓制
- compaction by single action 單效壓塑
- single-action pump 單動(dòng)泵
