- 落塵；降塵
- 落灰
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dustfall中文什么意思
例句與用法
- Ambient air - determination of dustfall - gravimetric method
環(huán)境空氣降塵的測(cè)定重量法 - Analysis of the metal element in the dustfall of the stone carving ' s surface in the yungang grottoes
云岡石窟石雕表面降塵中金屬元素分析 - Third , the quantity of dustfall are different in different shelter forest condition , the distribution order from maximum to minimum is wild , hedysarum scopsrium , ammopiptanthus mongolicus , 4th farm , 2th farm , 3th farm . and the quantity of dustfall in the hedysarum forest , ammopiptanthus mongolicus forest , 4th farm shelterbelt , 2th farm shelterbelt , 3th farm shelterbelt decline 61 . 64 % , 73 . 7 % , 80 . 18 % , 88 . 39 % , 78 . 48 % comparing with the wild
( 3 )不同防護(hù)林狀況下，降塵量也有不同的分布，其分布的大小順序?yàn)橐巴饣ò羯扯嗨膱?chǎng)二場(chǎng)三場(chǎng)，花棒、沙冬青、四場(chǎng)、二場(chǎng)、三場(chǎng)防護(hù)林內(nèi)降塵量分別比野外降塵量降低了61 . 64 、 73 . 7 、 80 . 18 、 88 . 39 、 78 . 48 。