rotating sections造句

例句与造句

1. Flanged wall valves , at right angles , for controlling gas appliances , with tapered rotating section , for built - in brass piping and with g 1 2 connection
   煤气控制装置.装配式黄铜管路和连接管节的锥形转动截面带法兰直角壁阀
2. It's difficult to find rotating sections in a sentence. 用rotating sections造句挺难的