空气成分 meaning in English

air composition

A hot core heater would be very useful to avoid condensation of the constituents of air at the higher mach numbers .
利用一个核心加热器，可以有效地避免空气成分在较高马赫数时发生冷凝。
Must check gas above all , must discharge by the regulation when gas is accumulative , answering only tasteful in gas chroma does not exceed 1 , 0 , carbon dioxide chroma does not exceed 1 , 5 , air composition accords with regulations when the 100th requirement , ability works
必须首先检查瓦斯，当瓦斯积聚时必须按规定排放，只有在回风流中瓦斯浓度不超过1 、 0 ，二氧化碳浓度不超过1 、 5 ，空气成分符合规程第一百条要求时，才能作业。
With the improvement of the economic level of our country and the development of the industrial technology of the automobile , the demands on the air conditions in the car are higher and higher , including not only the control on hot environmental parameters but also the regulation and control of the air composition in the car in order to improve the demands of comfortableness and security
随着我国经济水平的提高和汽车工业技术的发展,乘用汽车车内小气候的要求越来越高。为了提高舒适性和安全性,不但要对热环境参数进行控制,而且要对车内空气成分实施调节与控制。