1、

However, the technical difficulty of the hole density perforating.

然而,高孔密射孔器的技术难度相对较大。

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2、

Case study indicates that for a gas well with constant production rate, the relationship between the time of water breakthrough and the perforating degree assumes asymmetrical convex curve.

实例分析表明,底水气藏的一口生产井以定产量生产,在其它条件不变的情况下,其见水时间与气藏打开程度呈不对称凸型曲线关系。

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3、

Study of microanatomy on anterior communicating artery and its perforating branches inferior nasal arteriole of retina

前交通动脉及其下丘脑穿动脉的显微解剖研究视网膜鼻侧下小动脉

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4、

Perforating branches sent arcuate artery and muscular branches to supply fibula and lateral side half of soleus muscle.

穿支分出骨膜动脉、肌支,营养腓骨和比目鱼肌外侧半。

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5、

Methods A retrospective analysis on clinical data was performed on 162 patients with perforating corneal injury.

方法对162例(162眼)角膜穿孔伤的临床资料进行回顾性分析.

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