词语美国标准螺纹
解释american standard screw thread
american standard screw thread〔名词〕美国标准螺纹详细»
美国标准螺纹american standard thread详细»
美国标准螺纹american standard thread;united states standard screw thread详细»
美国标准螺纹american standard screw thread;american standard thread详细»