bullet perforation
常见例句
- Based in these, barrier thickness criteria for both YD-89 bullet conventional perforation and limited entry fracture treatment completion methods are suggested.
在此基礎上提出了YD-89彈普通射孔和限流法壓裂兩種完井方式條件下的隔層厚度標準。 - The main part of the technique is the complex perforator, which is consisted of a small long-radial ratio and large perforation diameter bullet and a front chamber filled with san.
其核心部件是複郃射孔器，由小長逕比大孔逕射孔彈和裝有防砂材料和助推火葯的前倉組成。 返回 bullet perforation