回答数
3
浏览数
332
jingmaotong
调整套、螺母、螺钉、O型圈Adjust the set, nut, screw, O-ring
yaodabian0214
We want to know the size of O ring
基斯颠奴86
We'd like to know the dimensions of O-rings.
优质英语培训问答知识库
