在构造无油区钻的井；构造外的井的英文

off structure well

• 在:    exist; be living
• 构造:    structure; constru ...
• 无:    not have; there is ...
• 钻:    drill; auger
• 的:    4次方是 The fourth po ...
• 井:    well
• 外:    outside; external ...