分离液化后生产的液化煤层气纯度达到99.86%，分离后排放的空气甲烷含量小于0.1%。

The purity of LNG products was 99.86% . Less than 0.1% methane can be detected in the vented air after separation.

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这些雾气缭绕不散，因为泰坦星地表坑洞中的液态甲烷在为其提供足够原料的同时，也使温度保持在一定水平上，使得空中的甲烷气能够不断受冷液化。

That fog then sticks around because it's in contact with the methane puddles, which keeps everything cool enough to keep the methane condensing.

youdao

这些雾气缭绕不散，因为泰坦星地表坑洞中的液态甲烷在为其提供足够原料的同时，也使温度保持在一定水平上，使得空中的甲烷气能够不断受冷液化。

That fog then sticks around because it's in contact with the methane puddles, which keeps everything cool enough to keep the methane condensing.

youdao