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1)  grain size
粒级
1.
Geochemical characteristics of nitrogen in different grain size sediment from the southern Huanghai Sea;
南黄海表层不同粒级沉积物中氮的地球化学特征
2.
By using mcirolysimeter,a laboratory simulation experiment was conducted to study the effects of the grain size and thickness of dust deposits on the soil water evaporation and salt movement in the hinterland of the Taklimakan Desert.
利用微型蒸渗仪(MLS)对不同粒级和不同厚度大气降尘沉积条件下塔克拉玛干沙漠腹地土壤水分蒸发和盐分运移进行了模拟试验。
2)  size fraction
粒级
1.
On the basis of the results of porosity measuring experiment and column leaching experiment,the relation between porosity and size fraction has been studied.
通过孔隙率测定实验和柱浸实验,探讨了孔隙率与矿堆内部各粒级之间的内在联系,分析了浸出过程中孔隙率变化的机理,提出了改善孔隙率的新方法。
3)  Particle fraction
粒级
1.
This paper dealing with the magnetic susceptibility distribution of particle fractions from three red earthes and three corresponding submerged paddy soils.
红壤经水耕熟化作用后各粒级磁化率大幅度下降,粒级间磁化率差异变小,分布曲线趋于平缓。
4)  fraction [英]['frækʃn]  [美]['frækʃən]
粒级
5)  particle granularity
颗粒粒级
6)  clay fraction
粘粒粒级
补充资料:中粒级

翡翠粒度粗细的第三等级,其特点是硬玉晶粒的直径为1mm至3mm,半透明至微透明,翠性明显,该级别翡翠为抵挡翡翠。

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