dry helium 中文意思是什麼
dry helium
解釋
干氦-
The dry atmosphere consists almost entirely of nitrogen ( 78. 1 % volume mixing ratio ) and oxygen ( 20. 9 % volume mixing ratio ), together with a number of trace gases, such as argon ( 0. 93 % volume mixing ratio ), helium, and radiatively active greenhouse gases such as carbon dioxide ( 0. 035 % volume mixing ratio ), and ozone
干大氣幾乎完全由氮( 78 . 1 %的體積混合比)和氧( 20 . 9 %的體積混合比)構成,還包括一些微量氣體,如氬( 0 . 93 %的體積混合比) 、氦,以及對輻射起作用的溫室氣體如二氧化碳( 0 . 035 %的體積混合比)和臭氧。
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