Sand filtration can also be an effective method of treatment.
沙滤系统也是一种很有效的处理方法。
The gravel packing in casing is a effective method to prevent sand production.
套管内砾石充填防砂是一种行之有效的防砂方法。
Reservoir calibration method is especially important for accurate identification of thin sand layer.
要准确识别薄砂层，层位标定方法就尤为重要。
The preparation method of a kind of steamed lime-sand brick was studied.
研究了一种蒸养灰砂砖的制备方法。
Sand table simulation experiment is a brand-new emulative experiencing study method.
沙盘模拟实验是一种全新的具有竞争性的体验式学习。
The invention also concerns a method for producing sand polypeptides.
本发明还涉及产生所述多肽的方法。
The invention also concerns a method for producing sand polypeptides.
本发明还涉及产生所述多肽的方法。
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