氯氟甲烷主要使用在气溶胶喷雾罐和作为冷冻剂。
The chlorofluoromethanes are used principally in aerosol spray cans and as refrigerants.
主要使用在香烟制造，最普遍的熏烟类型是弗吉尼亚型烟。
Used mainly in the manufacture of cigarettes, the most common type of flue-cured tobacco is Virginia.
主控台和AUX 埠是序列埠，它们主要使用在路由器的初始组态设定。
The console and AUX ports are serial ports that are used primarily for the initial configuration of a router.
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