The negative - pressure method is a new plugging relief and injection gain technology.
负压法地层解堵工艺是一项新的解堵增注技术.
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A low - pressure method may provide a less expensive route to ultrahard materials.
将能以成本较低的方式制造这种硬度超高的材料.
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The application of a film pressure method to natural water body was presented.
膜压法在自然水体中的应用较为广泛.
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