These factors must be balanced by the selection of diamond grade and concentration that will provide the operator with optimum performance at a suitable cost.
这些因素必须同时顾及挑选钻石分级及浓度，将提供最佳的营表现在一个适当费用。
The effect mechanism of separating performance and grade efficiencies of the dust concentration at the inlet of a cyclone separator was discussed.
探讨了旋风分离器入口含尘浓度对其分离性能及粒级效率的影响机理。
The impermeable ability of EC capsule bodies was gradually enhanced with the increase of viscosity grade of EC and concentration of EC solution.
随着制备胶囊体的EC粘度级别的增加和EC溶液浓度的增大，制得的EC胶囊体的非渗透能力逐渐增大。
Objective: to investigate the airborne pollen concentration in Beijing city during autumn and to grade the Artemisia pollen concentration.
目的：了解北京市秋季主要气传花粉的浓度，并对蒿属花粉浓度进行分级。
High purity phosphoric acid means food grade, semiconductor grade and other high purity and high concentration phosphoric acid.
高纯磷酸是指食品级磷酸和半导体级磷酸等高纯度、高浓度的磷酸。
Concentrate with grade of 64% at feed grade of 59% was also obtained with such separating equipment in Baogang Concentration Plant.
在包钢选厂给矿品位为59%的情况下，可得品位为64%以上的铁精矿。
The stress concentration state of weld joint on a tube socket containing defects exceeding grade after long term service has been evaluated by using the magnetic memory test (MMT).
用磁记忆检测(M MT)法评价了含超标缺陷管座角焊缝长期服役后的应力集中状况。
Through technical reform, No. 3 Concentration Workshop of Dagushan Concentrator has effectively raised the grade of iron concentrate to over 65% so as to achieve good results.
介绍了大孤山选矿厂三选车间通过技术改造，有效地将铁精矿品位提高到6 5 %以上，取得了较好的效果。
It is enunciated by numeric simulation with single-chip LED. The more the temperature grade is, the more hugely the energy decreases. There is a stress concentration around the chip.
通过单芯片LED的数值模拟结果表明：温度梯度越大，能量的衰减也越大，芯片附近存在应力集中。
A concentration process is important now that the depletion of high grade ores is possible.
由于目前商品级的矿石可能用完，富集过程是重要的。
The phosphor yield of domestic feed grade calcium monophosphate production processes is low, and there are a few production plants using the phosphoric acid concentration defluorination method.
国内饲料磷酸氢钙生产工艺的磷得率低，磷酸浓缩脱氟法的生产厂少。
This method has been applied to determine concentration of calcium in nuclear grade sodium and sodium sample from purification technology procedure in sodium production factory.
本方法可应用于核级钠及钠厂净化工艺过程钠中钙的分析。
Because of the concentration of top-grade fine jewelry and valuable items, this Fair has also become a paradise for the collectors and consumers to have their best choice.
由于展会的高档精品、珍品集中，该展会已经成为收藏者和高消费者的淘宝乐园。
The D2EHPA-TOA organic phase was used as the solvent-extraction system for the concentration of zinc and the separation of ferric ion from the biochemical lixivium of low-grade zinc sulfide.
选用D2EHPA—TOA体系作为低品位硫化锌矿生物浸出液中锌的富集和铁的去除的溶剂萃取体系。
Research results showed that re-concentration of magnetic concentrate was an efficient way to increase iron concentrate grade.
研究表明，磁铁精矿反浮选是提高庙沟铁矿铁精矿品位的有效途径之一。
A concentration process is important now that the depletion of high grade ores is a possibility.
由于目前高品位的矿石有可能用完，富集过程是重要的。
A concentration process is important now that the depletion of high grade ores is a possibility.
由于目前高品位的矿石有可能用完，富集过程是重要的。
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