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While underbalance drilling spreads greatly, rotating blowout preventer, as a kind of high technical product, is the crucial equipment to control well pressure.

国内欠平衡钻井普遍,用到的旋转防喷器是关键设备,技术含量高。

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A strainer is recommended to be installed ahead of the backflow preventer to prevent the fouling of the check assembly and resulting spillage from the valve during repressurization.

建议在防流阀前安装一个过滤器,防止由于止阀总成受到污致这种阀门在再增压期间产生泄漏或溢出。

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Abkhazia, Abkhazian, abkhazite, ABL, abl., ablactate, ablactation, ablare, ablastemic, ablastin,

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3G, 401(K), a,

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朗文OCLM-01单词

We need to paint the underneath with a rust preventer.

【underneath】我们需要用防锈漆把底部刷

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TED讲(音频版) 2019年1月合集

Firstly, getting married later allows the other two preventers of divorce

发挥作用。

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起源的故事

The understanding that germs — primarily bacteria, viruses, fungi, and protozoa — are responsible for the spread of many diseases led to a massive acceleration in researchers identifying specific disease causes, preventers, and treatments.

——主要是细毒、真和原生动物——是许多疾的原因,这认识大大加快了研究人员识别特定疾因、预防方法和治疗方法的速度。

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ablaut, ablaze, ABLB, able, able seaman, able to, ablebodied, able-bodied, ablegate, ableism,

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3G, 401(K), a,
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