短語(yǔ)詞組短語(yǔ)external screw thread finish 外螺紋瓶口external tapered thread 圓錐外螺紋external superheater thread 外螺紋parallel external pipe thread 圓柱外琯螺紋External l thread 外螺紋external superheater thread grinder 外螺紋磨牀external superheater thread cutting 外螺紋切削external screw thread [機(jī)]外螺紋;[機(jī)]陽(yáng)螺紋;外螺紋英語(yǔ)external pipe thread 外琯螺紋 返回 external thread