... perforation completion 射孔完井 perforation configuration 炮眼形状 perforation cylinder 炮眼圆筒 ...
基于40个网页-相关网页
·2,447,543篇论文数据，部分数据来源于NoteExpress
The results show that the porosity of plant fiber is the main intensity factor, and followed is the perforation of the configuration forms, and size of perforation is independent.
试验结果表明：植物纤维穿孔板静曲强度的主要影响因子是孔隙率，其次是穿孔的排列方式，与孔径大小无关。
youdao
应用推荐
模块上移
模块下移
不移动