contact time

But contact time at university has barely risen at all .

但大学里师生接触时间几乎没有变动。

The Effects of Flow Pattern and Contact Time on Cementing Displacement

紊流顶替和接触时间对顶替效率的影响

Even with my four hours of contact time per week .

不是我不想，只是没有时间即使在每星期只有四个课时的时候。

Includes approximate contact time needed by the local office .

包括由当地办事处大概所需的时间。

Study on the Contact Time of Impact Crusher with Dimensional Analysis and Numerical Simulation

冲击破碎机冲击时间的因次分析及数值仿真研究

Solvent resistance : the use of solvents and type of contact time .

耐溶剂性：使用时溶剂类型及接触时间。

Study on the Static Friction Coefficient Varying with the Stationary Contact Time

静摩擦系数随静接触时间变化的研究

Development and experimental study of the catalytic cracking reactor for ultra-short contact time

超短接触时间催化裂化反应器的开发及实验研究

The longer the contact time was , the easier to be infected .

接触时间越长越容易感染。

Calculation and Determination Principle of Contact Time for Oxidation of Ammonia with Nitric Acid

硝酸生产中氨氧化接触时间的计算及确定原则

Increase of contact time is advantageous to reducing quantity of tar formation .

增加接触时间有利于减小焦油的生成量。

Temperature , pH and contact time are factors that affect the disinfecting effectiveness .

影响消毒剂效果的主要因素有温度、pH值及作用时间。

Fluorescence spectroscopic identification of the coal liquid formed in short contact time liquefaction

煤短接触液化产品的荧光光谱鉴定

High - Temperature and Short - Contact Time Technology of FCC and Optimization of Riser Reactor

高温短接触催化裂化与提升管反应器的优化

Of contact time . On bankruptcy Discharge

投氯量和接触时间对E.破产免责制度研究

The selectivity and activity was dependent on reaction temperature , contact time and catalyst composition .

催化剂的活性、选择性与催化剂的组成、反应温度、接触时间以及原料组成有很大关系。

The antimicrobial activity of modified montmorillonite increases with the increase of concentration and contact time .

随着季鏻盐改性蒙脱土浓度的增加和接触时间的延长，改性蒙脱土的抗菌性能增强。

Process Analysis of Steam Reforming of Methane under Milliseconds Contact Time in Micro-reactors

微通道反应器内毫秒级甲烷蒸汽重整过程分析

On the Relation of Dry Friction of Solids and the Rest Contact Time and Slip Speed

固体干摩擦与接触时间、滑动速率的关系探讨

The effects of experimental parameters such as dosage , contact time and pH on the adsorption were investigated .

考察吸附剂投加量、接触时间、pH值对吸附作用的影响。

90 % of the biosorption capacity was reached in a contact time of 20 minutes .

而且，其吸附速率很快，在20min内90%的吸附容量即被饱和。

The article introduced the influence of contact time on the effect in handling the waste water of chromate , treatment .

本文就铁屑处理镀铬废水中接触时间对处理效果的影响进行研究。

The second is to keep reasonable line speed and contact time , assure as higher conversion ratio and selectivity .

二是保持合理的线速度和接触时间，保证较高转化率和选择性；

Low temperature and short empty bed contact time are bad for biodegradation of phthalic acid esters .

低温和低空床接触时间对邻苯二甲酸酯的生物降解不利。

Of contact time . The change of contact resistance for stationary and dynamic contact of both composite coatings is different .

投氯量和接触时间对E.复合镀层的静态接触电阻与动态接触电阻的变化规律有所不同。

It shows that this method has high nitrifying characteristics and the contact time has a certain effect on nitrifying characteristics .

试验表明该法具有较高的硝化性能，接触时间对硝化性能有一定影响。

Filter medium , empty bed contact time ( EBCT ), water temperature and back-flush mode , etc.

通过试验探讨了过滤介质、空床接触时间、水温和反冲洗方式对生物过滤去除有机物的影响。

This increases the contact time between sugar and teeth , creating a perfect environment for cavities to develop .

这会增加糖和牙齿接触的时间，创造了滋生蛀牙的完美环境。

Defluoridation rate was gradually increased with the prolongation of contact time and reached 98 % at last .

24小时内可使水氟下降80%以上，随时间延长降氟效率逐渐增加，最终可降氟98%以上。

Based on the analytical results of axial gas sampling , an optimum reaction contact time was found to be approximately one second .

通过轴向气体分析结果，确定了反应接触时间为1秒。