valveglobe的知识聚焦

ballvalve(sphericalvalve,globevalve)词语：ballvalve(sphericalvalve,globevalve)解释：球阀（转动阀，球阀）词典：专利专业英汉词典ballvalve(sphericalvalve,globevalve)相关解释球阀（转动阀，球阀）ballvalve(sphericalvalve,glo...