throttle valve英 [ˈθrɒtl vælv]美 [ˈθrɑːtl vælv]网络 节流阀; 节气门; 節流閥; 节气门阀; 减压阀化学英英释义nouna valve that regulates the supply of fuel to the engineSynonym:acceleratorthrottle双语例句