The idea behind enhanced, or engineered, geothermal systems is to inject water underground to enhance the permeability of rock, allowing for the release and capture of more heat.
增强型的或是工程型的地热系统将水注入到地下，使岩石的渗透性提高，这样便可以吸收或释放更多热量。
Generally resistant to animal and vegetable fats, oils, greases, ozone, heat, and strong oxidizing chemicals. Chlorobutyl has lowest permeability of all the synthetic rubbers.
通常适用于动物脂肪或植物油、油、油脂、臭氧、热，以及强氧化剂。氯丁基橡胶在所有合成橡胶中的渗透性是最低的。
This article analyses influence of heat setting process on abradability and air permeability of batt-on-mesh needled felt.
分析热定型工艺对底网针刺植绒毛毯耐磨性和透气性等的影响。
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