Gives the testing results of perforating aftereffect.给出了增效射孔作业技术的试验结果.The vital importance of the early recognition of perforating appendix is unmistakable.能够早期辨明阑尾正在穿孔是极端重要的.Two kind of separated perforating and pulse f...
The vital importance of the early recognition of perforating appendix is unmistakable.能够早期辨明阑尾正在穿孔是极端重要的.Two kind of separated perforating and pulse fracturing composite charges are studied.论述了低渗油气层的地质特征;研究了两种分离式射孔脉冲压裂复合...
当这个婴儿最先把手伸向母亲时，他脸色一沉。His face collapses when the baby preferen-tially reaches for the mother.他把手伸向艾尔弗雷德。He put out his hand to Alfred.葡萄树已开始伸向墙外了.The vine has begun to grow away from the wall....