安全阀入口焊接坡口尺寸由卖方提供。

Safety valve's inlet butt end shall be supplied by seller.

youdao

使用数控切管机切割带焊接坡口的相贯线时，手工编程效率低下。

Manual programming is inefficient when using CNC pipe cutting machine cuts intersection lines with welding groove.

youdao

此外，小车切割作为辅助切割工具与数控切割机配套使用，专门用来加工焊接坡口。

In addition, the car cut as auxiliary cutting tools and nc cutter, dedicated to supporting the use of processing welding grooves.

youdao