1) large aperture and high dense hole perforation
大孔径高孔密射孔
2) high density perforation
高孔密射孔
3) big-role perforator
大孔径射孔器
1.
The defects of perforating-depth test of big-role perforators are pointed out.
通过对大孔径射孔器井下使用环境要求、工作原理的分析,提出了对现行实验用混凝土靶进行改进的方案,并将穿孔深度指标的评价方法由计量抽样评价改为计数抽样评价,以克服穿孔深度检测过程中的缺陷,正确可靠地评价大孔径射孔器的性能。
4) big hole perforator
大孔径射孔弹
5) macropore diameter
大孔孔径
1.
Study of the effect of macropore diameter on the formation of the bone-like apatite in the carbonate-contained HA/β-TCP ceramics;
大孔孔径对含CO_3~(2-)的双相HA/β-TCP多孔陶瓷表面类骨磷灰石形成的影响
6) high shot density perforator
高孔密射孔器
