Presents the system energy consumption evaluation method based on the time-weighted average overall efficiency. 提出了时间加权平均(TLV-TWA)全效率的系统能耗评价方法。
The recommended limits are time-weighted average of200 mT during the working day for occupational exposure, with a ceiling value of2 T. 建议的限值是在工作日中职业暴露为200mT的时量平均值,最高限值为2T。
Determination of time-weighted average concentration for vinyl chloride in the air of workplace 车间空气中氯乙烯的时间加权平均(TLV-TWA)浓度测定
[ Methods ] The Chinese samplers measured short-term total dust concentration in environment, while the US samplers collected full-shift time-weighted average respirable dust and total dust concentrations. [方法]中国测定的是环境瞬时总粉尘浓度(Tchn),美国测定的是整班时间加权平均(TLV-TWA)呼吸性粉尘浓度(Rus)和总粉尘浓度(Tus)。
Study on determination of time-weighted average concentration for benzene, toluene and xylenes in air 空气中苯系物时间加权平均(TLV-TWA)浓度测定方法