n.毫巴
For cylinders equipped with residual (positive) pressure valves, one evacuation under vacuum at 150 millibar is sufficient if the pressure is positive. 对于装有剩余压力阀门的气瓶，如果瓶内剩余压力是正压，把它抽真空到150mbar以下就可以了；
Altimeter IFR 45-20M, 20000ft, Millibar, with TSO certificate, 80mm 10001670 20M高度表，20000英尺,毫巴，附技术标准规则证书，80毫米
millibar barometer 毫巴气压表
millibar(unit of pressure) 毫巴(压力单位)
