without screw thread
without screw thread
[专利英汉词典]
without screw thread【机械工程;照明;加热;武器;爆破】
没有螺纹
是什么意思,without screw thread的解释,without screw thread的翻译
without screw thread
[专利英汉词典]
without screw thread是什么意思,without screw thread的解释,without screw thread的翻译