annual mean

基本解釋

• 年平均；累年平均

英漢例句

雙語例句

• 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).
  空氣質(zhì)量用年平均細(xì)顆粒物的濃度表示（PM10至PM2.5,即粒徑小于等于10或2.5微米的細(xì)顆粒）。
• 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.
  鑒于這種起伏，估算室內(nèi)空氣中氡的年平均濃度需要對(duì)氡的平均濃度至少進(jìn)行三個(gè)月的測定。
• For forest watershed and shrub watershed, the annual mean runoff coefficient was affected by mean annual precipitation, mean annual evapotranspiration and mean slope grade.
  對(duì)于森林流域和灌木流域，其多年平均徑流系數(shù)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響；

權(quán)威例句

• For organizers, these forums—especially annual ones—are supposed to mean new business opportunities and a bigger, better event the following year.
  FORBES: Why You Must Attend More Conferences -- and Bring Colleagues
• For those occupations where there is not an hourly mean wage published, the annual wage has been directly calculated from the reported survey data.
  FORBES: America's Best-Paying Blue-Collar Jobs

• annual mean更多例句

詞組短語

短語

• annual surface mean 水面的全年平均數(shù)
• annual bottom mean 水底的全年平均數(shù)
• Annual geometric mean 年幾何平均值
• annual winter mean temperature 年冬季平均溫度
• annual winter mean temperature series 年冬季平均氣溫序列

• annual mean更多詞組

專業(yè)釋義

地球科學(xué)

• 年平均

  The results indicate that in the recent 50 years,the annual mean soil temperature successively experienced a cooling period,a relative cold period and then a warming period.
  結(jié)果表明,近50 a,全國年平均地溫的年代際變化大致為下降階段,相對(duì)氣候冷期及上升階段。

  農(nóng)業(yè)科學(xué)

• 累年平均