·2,447,543篇论文数据,部分数据来源于NoteExpress
针对石油割缝筛管的现状,开发出了一种新型复合缝腔割缝筛管。
Aimed at the current status of petroleum slotted sieve tube, a kind of new typed slotted sieve tube with compound slot was developed.
youdao
应用推荐
模块上移
模块下移
不移动