bullet perforation

常見例句

雙語例句

• 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(chǔ)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。
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