钢质焊接药筒的大量使用，其长贮性能引起人们广泛关注。

Welded steel cartridges used in huge Numbers demand a close attention to its long-time storage performance.

youdao

钢质焊接药筒的大量使用，其长贮性能引起人们广泛关注。

Welded steel cartridges used in huge Numbers demand a close attention to its long-time storage performance.

youdao