cylindrical pipe thread中文: the Chinese language; Chines ...圆柱: column管螺纹: gas thread; pipe thread圆柱管螺纹: cylindrical pipe thread圆柱管螺纹圆板牙: round die for straight pipe threading下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:中文：圆柱管螺纹，即可在微信中查询翻译
