DST (drill Stem test), a fast test for show of oil and gas while drilling.
即中途测试，是指油井在钻井过程中，对有。
High drum clutches are getting hot while drilling, please repair or change it!
高速离合器发热，请修理一下或换掉！
So while they are drilling, you must correct so that they get the drill right.
因此在运动员练习时，你必须对错误之处进行纠正，以保证练习的正确。
While we were slipping drilling line, they were measuring drill pipes.
当我们滑大绳的时候，他们在仗量钻具。
While we were slipping drilling line, they were measuring drill pipes.
当我们滑大绳的时候，他们在仗量钻具。
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