gun perforation

短语词组

短语

• Gun barrel perforation test 有枪身射孔试验
• Non -gun barrel perforation test 无枪身射孔试验
• method of gun perforation 射孔方法
• gun perforation position 射孔段
• perforation gun 射孔器
• wireline perforation gun 电缆射孔枪
• scalloped perforation gun 盲孔枪
• composite perforation gun 复合射孔枪
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