annual mean

常见例句

Air quality is represented by annual mean concentration of fine particulate matter (PM10 and PM2.5, i.e. particles smaller than 10 or 2.5 microns).
空气质量用年平均细颗粒物的浓度表示（PM10至PM2.5,即粒径小于等于10或2.5微米的细颗粒）。
Because of these fluctuations, estimating the annual mean concentration of radon in indoor air requires measurements of mean radon concentrations for at least three months.
鉴于这种起伏，估算室内空气中氡的年平均浓度需要对氡的平均浓度至少进行三个月的测定。
For forest watershed and shrub watershed, the annual mean runoff coefficient was affected by mean annual precipitation, mean annual evapotranspiration and mean slope grade.
对于森林流域和灌木流域，其多年平均径流系数主要受多年平均降水量、多年平均蒸散量和平均坡度共同影响；

For organizers, these forums—especially annual ones—are supposed to mean new business opportunities and a bigger, better event the following year.
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For those occupations where there is not an hourly mean wage published, the annual wage has been directly calculated from the reported survey data.
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