The pressure bar of a lead briquetting machine, imported from German, was seriously scratched during its service.

从德国进口的压铅机压杆在使用中表面严重划伤。

youdao

The pressure bar of a lead briquetting machine, imported from German, was seriously scratched during its service.

从德国进口的压铅机压杆在使用中表面严重划伤。

youdao