cock ball
词语： cock ball
解释： 球阀
词典： 消防专业英汉词典
cock ball 相关解释
球阀 ball cock;ball valve
球阀 ball valve;ballfloat valve;spherical valve
球阀 ball valve;globe valve
球阀 ball valve;globe valve;spherical valve
球阀 ball valve;spherical valve
球阀 ball valve;spherical valve;straight flow rotary valve
球阀 ball check;cock ball
球阀 ball check;ball cock;bullet valve;relief ball