To solve effectively the problem of sand removing in low-pressure absorption Wells, a drilling sand pump was developed.
为了有效解决低压漏失井的井下清砂问题，研究开发了一种具有钻进功能的捞砂泵。
The sand control of oil well pump is very important for drilling-production system.
抽油泵防砂是钻采系统防砂的一个重要环节。
The sand control of oil well pump is very important for drilling-production system.
抽油泵防砂是钻采系统防砂的一个重要环节。
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