After molding, there is gas trap on the part surface, suggest adding insert.

成形后，产品表面有困气，建议增加镶件。

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Finally, we can predict the reservoir and evaluate the oil-gas trap in the light of the sandstone distribution and geological structure.

再根据砂层分布规律和构造特征进行储集层的预测和油气圈闭评价。

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Based on the grey system study of oil and gas information, the grey positioning method for forecasting geophysical anomaly of oil and gas trap is put forward.

基于油气信息灰色系统研究，提出了油气物探异常灰色定位预测法。

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Methane hydrates are frozen water molecules that trap methane gas molecules in a crystalline, lattice-like structure known as a hydrate.

FORBES

Coal beds often double as aquifers, and to remove the gas thousands of gallons of water (which trap it in the coal) must be got out first.

ECONOMIST: Energy supplies

Since they were first made in 1995, Bose-Einstein condensates have become commonplace as experimental tools. (They are particularly valued for their ability to slow the speed of light all the way down to zero.) Dr Steinhauer and his colleagues created a condensate out of a gas of rubidium atoms held in a magnetic trap.

ECONOMIST: Black holes on a desktop