Don't switch on during drilling operation.
钻井作业期间不能合闸。
Measuring the amount of natural gas that is leaking during drilling is one challenge.
测算油气井开采过程中逸散的天然气量是一个难题。
Also in development are new drilling muds that cool the drill bit during operation.
新的钻探泥浆(用于在操作时冷却钻头)也在开发中。
Also in development are new drilling muds that cool the drill bit during operation.
新的钻探泥浆(用于在操作时冷却钻头)也在开发中。
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