例句與造句

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減壓區(qū)總成具有飲用水供應(yīng)系統(tǒng)交叉連接管理功能，符合美國國家管道行業(yè)的有關(guān)規(guī)定。
2. It's difficult to find control protection in a sentence. 用control protection造句挺難的