查询词典 concentration on

The partial oxidation of methane by the H5PV2Mo10O40 catalyst in oleum was studied. The effects of catalyst amount, reaction temperature, reaction time, and sulfur trioxide concentration on the methane conversion and methanol yield were investigated.

以H5PV2Mo10O40 为催化剂，在发烟硫酸中进行了甲烷液相部分氧化，考察了催化剂用量、反应温度、反应时间和发烟硫酸浓度等工艺条件对反应收率的影响。

B yusing UV, MI, TGA and DSC techniques, the effects of phenoxide groups andits relative concentration on the structure and propenies of PEEK during Synthsisand processing have been studied.

本文用稍过量4、4'－二氯苯酮合成的聚醚醚酮样品，利用UV、MI、DSC和TGA等研究本氧阴离子及其相对浓度在树脂合成和加工过程中对PEEK分子结构和性能的影响。

We analyzed the effect of different phytohormone combination and different phytohormone concentration on the inducement of callus, buds and root.

分析了不同激素配比和不同激素浓度对愈伤组织诱导和芽分化以及根再生效果的影响。

Effect of N, P concentration on growth rate and biomass of phytoplankton in eutrophical water .

富营养化水体中N， P浓度对浮游植物生长繁殖速率和生物量的影响。

Effects of Cr(superscript 3+) with different concentration on content of chlorophyll, root top ratio, content of praline and root activies in radish seedlings were studied by the method of sand-culture.

采用砂培研究了萝卜幼苗受到Cr(上标 3+)胁迫时，根冠比、根系活力、叶绿素含量和植株体内脯氨酸含量的变化。

Polycarbosilane was used as the preceramic for matrix formation and 2D layered 0°/90° fabrics as the reinforcement to fabricate C/SiC composites. The effect of pyrolysis temperature and slurry concentration on the properties of the composites was systematically studied.

采用聚碳硅烷作为碳化硅先驱体，以二维0°/90°正交编织碳布叠层后作为增强体，采用真空压力浸渍的方法制备了C/SiC复合材料，研究了裂解温度和浆料浓度对复合材料性能的影响。

Objective To study the effect of mitomycin C of the same concentration on the recurrence of pterygium with different time.

目的 观察翼状胬肉术中同一浓度的丝裂霉素棉片留置不同时间对复发率的影响。

The effects of Reynolds number, Prandtl number and nanoparticle concentration on the convective heat transfer characteristics were investigated.

考察了Reynolds数、Prandtl数以及体积分数对流动换热的影响。

Regulation of zinc of different concentration on the growth and substance accumulation in Dunaliella salina was studied.

实验研究了不同浓度的锌对盐藻细胞生长与物质积累的调控作用。

The influences of temperature,scan rate and nitromethane concentration on the electrochemical characteristics of nitromethane were also discussed.

以铂微盘电极为工作电极，采用循环伏安等测试方法研究了硝基甲烷在离子液体1-正丁基-3-甲基咪唑六氟磷酸盐(BMImPF6)中的电化学行为，讨论了温度、扫描速度以及底物浓度等因素对其电化学行为的影响。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。