During water plugging operation, the key factor of success is how to protect non-target zones from pollution.

在堵水封窜作业中，如何保护非目的层不受污染，是施工成功与否的关键。

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Inorganic non-metallic high temperature plugging material is designed for heavy oil thermal recovery of high temperature operation and development of plugging new material.

无机非金属高温调堵材料是专门为稠油热采的高温调堵作业而研制的新材料。

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Chemistry shuts off the water includes the selective water plugging and the non-selective water plugging.

化学堵水又包括选择性堵水和非选择性堵水。

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Both Benanke and Volcker say that instead of re-arranging the regulatory deck chairs, Congress should focus on plugging the gaps in existing regulations, such as establishing a process for officials to unwind faltering non-bank financial firms.

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