control protection造句

例句与造句

1. Series 909 reduced pressure zone assemblies are designed to provide crossconnection control protection of the potable water supply in accordance with national plumbing codes
   系列909减压区总成具有饮用水供应系统交叉连接管理功能，符合美国国家管道行业的有关规定。
2. It's difficult to find control protection in a sentence. 用control protection造句挺难的