needle valve
导读：needle valve读音音标
英 [ˈni:dl vælv]美 [ˈnidl vælv]
needle valve意思解释
n.针形阀，针状活门；
双语例句用作名词(n.)All needle valves must be closed on test kit.
英 [ˈni:dl vælv]美 [ˈnidl vælv]
needle valve意思解释
n.针形阀，针状活门；
双语例句用作名词(n.)All needle valves must be closed on test kit.
needle valve读音音标
英 [ˈni:dl vælv]
美 [ˈnidl vælv]
needle valve意思解释
n.
针形阀，针状活门；
双语例句
用作名词(n.)All needle valves must be closed on test kit.检测组件上的所有针形阀必须关闭。Needle valves are small sizes of globe valves fitted with a tapered plug.针形阀是配置锥形插式接头的小型截止阀。
