气象气球主要是用来测定温度,气压和风速的,另外它还能够测出空气中很多种气体的含量,例如二氧化碳和氧气等。
This weather balloon will mostly measure temperature, air pressure, and wind speed, but others sample the air for the concentration of various gases like carbon dioxide and oxygen.
养护时首先应查看轮胎气压、磨损状况,螺母有无松动或掉落,除去双胎间或胎面上的嵌入物及铁钉等尖利杂物。
Maintenance should first check the tire pressure, wear, nut loose or fall off, remove the twins or tread on the inserts and nails and other sharp objects.
辐射水平在时间上的变化,一般由降雨、风和气压等气象因素所引致。
Temporal variations are generally caused by changes in meteorological conditions such as rainfall, wind and barometric pressure.
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