粉末冶金(图5.1)采用烧结工艺将金属粉末制成各种各样的零件。金属粉末放在封闭的金属腔(模具)中在压力下被压实。
Powder metallurgy (Fig. 5.1) USES sintering process for making various parts out of metal powder. The metal powder is compacted by placing in a closed metal cavity (the die) under pressure.
烃类生成、压实作用,蒙脱石脱水,水热增压及地层的封闭性是产生高压油气藏的主要原因。
The major causes of abnormally high pressure oil-gas pools are hydrocarbon generation, under compaction, montmorillonite dehydration, hydrothermal-pressure increasing and sealing.
证明了任一环有代数封闭的扩张环,且实封闭域上的四元数体是代数封闭的,给出了代数封闭环的若干性质。
The two theorems are proved that any ring can be extended into an algebraically closed ring and that the quaternionic skew field over a real closed field is algebraically closed.
超压异常的形成与不均衡压实、水热增压、烃类的生成及存在较好的封闭层有关。
The authors of this paper hold that the mechanism of abnormal pressure is related with disequilibrium compaction, aquathermal expansion, hydrocarbon generation and better sealing strata.
持续生烃和压实封闭是普遍超压的主因,现代地压状况是晚期构造改造的结果。
The superpressures mainly result from sustained hydrocarbon-generation and compaction seal and the current geopressure circumstances are the result caused by late tectonic movements.
初步分析各时代流体的封闭时间和主要目的层欠压实异常类型。
The confining time of fluids of each age is primarily analyzed as well as sub - compaction anomaly type of the main target layers.
金属粉末放在封闭的金属腔(模具)中在压力下被压实。
The metal powder is compacted by placing in a closed metal cavity (the die) under pressure.
金属粉末放在封闭的金属腔(模具)中在压力下被压实。
The metal powder is compacted by placing in a closed metal cavity (the die) under pressure.
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