用量

In this paper,the factors,which consisted of acidity,nitrite,the time of diazotization,concentration and time of decomposing excessive NaNO2,dosage of N-na reagent,time of coincidence and beam,were studied to character the effect of analysis for aniline compound in water.

研究了酸度、亚硝酸盐、重氮化时间、分解过量NaNO2所用试剂的浓度和时间、N-na试剂用量及偶合时间、光线等因素对水体中苯胺类化合物分析的影响。

And meanwhile the hydrogenation activity of the product titanocene dichloride for SBS was evaluated.

当加氢反应温度为70℃，压力为2.0 MPa，催化剂用量为0.4 mmol ／100 g聚合物时，SBS中加氢度达到94.2％。

Tool's abrasion and dilapidation mechanism of dry milling high-strength steel were investigated.

采用硬质合金刀片和涂层刀片进行了高强度钢的干铣削试验研究；根据这两种刀片在不同切削用量条件下的磨破损情况，利用扫描电镜和能谱分析的结果，分析了这两种刀片的磨破损机理。

This article has discussed the influence of composition of dilatant fire retardant coatings on the quality of charring layer and fire retardant property, and indicated some important ingredients, their usages and synergistic effect in formulation design.

探讨了膨胀型防火涂料的组成对炭化层的质量及其防火性能的影响因素，并介绍了配方设计中值得注意的品种、用量和协同效

At the same time, in order to maintain a consistent; the total quantity of the diluent must be controlled.

同时，为了保持一致的粘性，对稀释剂的用量也要加以控制。

Basic concept of Dimension and ∏ theorem and principle of homogeneity on dimensional analysis are introduced in this paper.

主要介绍了量纲的基本概念、量纲分析的∏定理及齐次性原则，用两个实例解释了量纲分析在物理中的应用，最后指出了用量纲分析问题时应注意的问题和存在的不

The influences of the amount of triethylenetetramine, temperature, molar ratio of epichlorohydrin and dimethylamine, and reaction time on the viscosity and cationic degree of the polyamine flocculants were investigated. Then the influence of pH value, flo-cculant dosage and temperature on flocculation effect were studied.

研究了三乙烯四胺添加量、反应温度、n∶n、聚合时间等因素对聚合物黏度和阳离子度的影响，并考察了该聚合物用于造纸废水处理时，体系pH值、絮凝剂用量对絮凝效果的影响。

Catalysis of sulfuric acid has been investigated in the preparation of dibromoalkane by epoxy compound and aliphatic diol .

结果表明：浓硫酸的用量对环氧化合物以及脂肪二元醇合成二溴代烷的收率有很大的影响

Under the conditions that the molar ratio of dimethyl carbonate to N,N′-diphenyl urea was 10∶1,the amount of catalyst Bu2SnO was 2%,reaction temperature was 160℃,and reaction time was 2 h,the yiel...

在反应物碳酸二甲酯和二苯基脲的摩尔比为10∶1，催化剂Bu2SnO的用量为2%，160℃时，反应2h，MPC的收率达到98%，远高于文献结果(77%)。

Monodispersive Au nanoparticles were synthesized via the redox reaction between diphenylamine sulfonate and HAuCU-The effect of the amount of sodium diphenylamine sulfonate and polyon the morphology and size of Au nanoparticls were examined.

利用四氯合金酸和二苯胺磺酸钠反应，制备了大小均匀的金纳米粒子。考察了还原剂二苯胺磺酸钠和保护剂聚乙烯吡咯烷酮的用量的变化对金纳米粒子形貌和大小的影响。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。