通过改进，克服了原来一次性高压充填机械防砂技术有效期短的缺点，有效提高了一次性防砂成功率。
The period of validity of one-off high pressure pack mechanical sand control technology has been extended. The success ratio of one-off sand control has been improved.
通过改进，克服了原来一次性高压充填机械防砂技术有效期短的缺点，有效提高了一次性防砂成功率。
The period of validity of one-off high pressure pack mechanical sand control technology has been extended. The success ratio of one-off sand control has been improved.
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