... perforation pattern孔眼排列方式 perforation penetration射孔穿透深度 perforation adding补孔 ...
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single-perforation penetration test 单孔射孔穿透试验
perforation penetration test 单孔射孔穿透试验
deep penetration perforation 深穿透射孔
penetration and perforation 侵彻与贯穿
hydraulic deep-penetration perforation 水力深穿透射孔
The technology uses deep penetration perforation charge with high perforation density and large perforation diameter and surging perforation with greater pressure differential.
它采用高孔密大孔径深穿透射孔弹和大压差抽吸炮眼清洗技术，不仅能提高油井产能，解除近井带污染，还可以改善防砂完井效果。
Types of injuries vary from closed globe (contusion or lamellar laceration) to an open globe injury, which includes penetration and even perforation of the globe.
受伤的类型多样化，从闭锁性的眼球(挫伤或层状撕裂)到开放性的眼球损伤皆有，其包括眼球穿透甚至穿孔。
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