The gas-forming hypotheses are mainly synthetic gas and earth outgas hypotheses.
其成气假说主要有合成气说和地球脱气说。
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With such a makeup of mantle gases, Holland says, "you can't outgas the interior to make the atmosphere—the atmosphere has to come from somewhere else."
Friction Material Fade - When pads reach high temperatures they can sometime "outgas" chemicals that redeposit themselves on the surface of the brake pad.