mass concentration

The action of optical direct-reading techniques in environment monitoring was described, with analysis of relationship between atmospheric aerosol mass concentration distribution and number distribution by multiple regressions.

介绍了光学测量技术在环境监测中的应用，利用多元回归方法分析了大气气溶胶数密度和质量浓度的相关性。

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An analysis of a PM_ ( 10) heavy pollution process in Beijing in November in 2000 was carried out to diagnose the weather pattern that creates the mass concentration of PM_ ( 10).

对北京2000年11月的一次PM10重污染过程进行分析，以期进行造成PM10质量浓度增量的天气型诊断。

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Compared with some domestic and overseas sampling device and monitoring analyzer, the results of another performance test on the mass concentration shows that the new analyzer made by the authors approaches advanced world level.

与国内外部分监测仪器进行了同步的颗粒物质量浓度监测的比对测试，结果表明其性能已基本达到国外同类监测仪器的水平。

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Properties and mechanism of high mass concentration polymer solution in sub-layers

二类油层高质量浓度聚合物溶液性能及机理

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Using plot of pyrene I1/ I3 ratio versus logarithm of different mass concentration of collagen, the critical aggregation mass concentration ( CAMC) was0.

运用芘I1/I3值与胶原蛋白质量浓度对数的关系，通过作图法确定胶原蛋白的临界聚集质量浓度（CAMC）为0。

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Some right expressions relating to solution composition, such as mass fraction, volume fraction, mass concentration, molarity and volume ratio were introduced.

对溶液组成标度，如质量分数、体积分数、质量浓度、物质的量的浓度、体积比的正确表述也一一进行了介绍。

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The mass concentration of oxygen in condensate is an important indicator to show the condensate quality, and it has great influence on thermal circulation of steam turbines.

凝结水中氧的质量浓度高低是显示凝结水水质的重要指标，对汽轮机的热力循环影响很大。

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According to the diagnostic analysis result of environment process with weather pattern, the mass concentration of PM_ ( 10) change and the synoptic situation evolution have good relationship.

根据环境过程与天气型的诊断分析结果认为，PM10质量浓度变化与天气形势演变有较好的对应关系。

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Study on the Critical Aggregation Mass Concentration of Collagen from Walleye Pollock ( Theragra Chalcogramma) Skin by Pyrene Probe

芘荧光探针法研究狭鳕鱼皮胶原蛋白临界聚集质量浓度

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Furthermore voltage, reaction temperature and amine mass concentration are important exterior factor which effect electrolysis.

此外,电压 、 反应温度、胺的质量浓度等均是影响反应的重要外部因素.

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Work-place air-determination of mass concentration of nitrogen dioxide-method using detector tubes for short-term sampling with direct indication

工作场所的空气-二氧化氮密浓度的测定-用直接指示的短期取样用检测管进行测定的方法

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The size distributions of the mass concentration of particles were tri-modal in winter and sping, while they were bi-modal in sumer and autumn.

冬季和春季的颗粒物质量浓度的粒径分布为三模态，而夏季和秋季为双模态分布。

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High mass concentration of lead induced adventitious roots.

高质量浓度铅诱导不定根产生。

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The practice shows that the efficiency of the reformed water membrane dust collector comes up to 95%; and the mass concentration of emitted dust is 72~ 93 mg/ m 3, lower than the national emission standard.

实践证明，改造后除尘器的除尘效率达到95%，烟尘质量浓度为72～93mg/m3，低于国家排放标准。

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Study on the Analysis of NO_2~-, Br~-and NO_3~-by Ion Chromatography in the Presence of High Mass Concentration of Chloride

离子色谱中高质量浓度的Cl~-对痕量NO2~-，Br~-和NO3~-测定的影响

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The flocculation technique mainly makes use of low mass concentration of residual polymer and the fixation technique mainly makes use of high mass concentration of residual polymer.

研究证实，絮凝技术主要利用地下低质量浓度的聚合物，固定技术主要利用地下高质量浓度的聚合物。

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The mass concentration of hydrogen sulfide in the vent gas of concentration tower is over-proof due to the increase of shift gas quantity and sulfide compounds content.

由于变换气量及气体中硫含量的增加，导致原浓缩塔放空气中硫化氢质量浓度超标。

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Effects of mass concentration and enzyme digestion time on isolation of rat islet cells

胶原酶消化时间及质量浓度对大鼠胰岛细胞分离的影响

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The level of 6 keto prostaglandin F1 alpha was obviously lower in each mass concentration C reactive protein group than in the control group ( P < 0.01), and it was decreased with the increase of the mass concentration of C reactive protein ( P < 0.01).

C反应蛋白各质量浓度组6-酮-前列腺素F1α水平明显低于对照组（P

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The soot particles are oxidized by about 70~ 80% in the late combustion phase. And then, the mass concentration of particulate equals to the concentration in the tail pipe.

在燃烧后期，约70～80%碳微粒被再次氧化，此后微粒质量浓度接近于排放水平。

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Ambient air quality standard between China and America was compared in the fields of function determination, standard's level, pollutant's item, sample time and mass concentration limit etc.

比较了中美两国环境空气质量标准的制定依据、功能区划分、标准级别、污染物项目、取值时间和污染物质量浓度限值等内容。指出美国环境空气质量标准的修订频次高于我国；

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The results show: the sediments can uptake phosphate from the overlying water with high mass concentration, but the rate and quantity of uptake were different in different conditions;

研究结果表明：沉积物能够吸收上覆水中高质量浓度的磷酸盐，但吸收量和吸收速度随环境条件的不同而不同；

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The technical calculation of the vice-tower and the innovated technical process are presented, and the mass concentration of hydrogen sul-fide in the vent gas reaches the design index after the innovation.

介绍了浓缩副塔的工艺计算和改进的工艺流程，改造后浓缩塔放空气中硫化氢质量浓度达到了设计要求。

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The bipolar packed bed cell ( BPBC) was used in the treatment of simulated nitrobenzene wastewater. The effects of voltage, mass concentration of Na_2SO_4, pH and initial mass concentration of nitrobenzene on the electrolysis were studied.

用复极固定床电解槽处理模拟硝基苯废水，考察了电解电压、Na2SO4质量浓度、pH、硝基苯的初始质量浓度等条件对电解效果的影响。

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Changes of ultrastructure of somatic embryos in the process of maturation with high mass concentration of sucrose in longan

龙眼体细胞胚胎高质量浓度蔗糖成熟培养后的超微结构变化

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TSP Mass Concentration and Number Concentration of Particles in Dust Storm Weather in 2002 Spring of Beijing But in few summer weather, the pollution of PM2.5 is serious.

北京2002年春季沙尘暴天气的TSP质量浓度和数浓度谱分布采暖前后PM2.5浓度有明显上升趋势。

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The optimal reaction conditions were found as follows: mass concentration of PAV 0.13 g/ mL, volume fraction of PAPI 0.6%, reaction time 75 min, reaction temperature 2030 ℃. The compression shearing strength of the binded wood plate is up to 6.62 MPa.

适宜反应条件为：PVA的质量浓度0.13g/mL、PAPI的体积分数0.6%、交联反应时间75min、交联反应温度20～30℃，粘合木材后的压缩剪切强度达6.62MPa。

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The dust mass concentration indoors can meet the national environment protection standard if there are no other sources of pollution.

在室内无其他污染源的情况下，可使空气含尘质量浓度满足国家环保标准。

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High viscosity Slime ( its mass concentration is 75%) is prone to agglomerated in the stockpile and interlarded with gangues, blocks in transportation. So it has to break up into fluid to debase its transportation resistance before pipeline-transportation.

高浓度煤泥（质量浓度75%）在贮存中易于结块且在运输中常混入矸石、木块等杂质，故管道输送前必须对其破碎成浆，降低输送阻力。

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A continuous and real-time testing system based on microcontroller is designed to test ozone mass concentration by UV absorption.

为了能够实时在线连续检测臭氧质量浓度的大小，利用紫外线辐射吸收法来测定臭氧的浓度，给出了单片机系统用于检测臭氧质量浓度的实施方案。

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