查询词典 reducing agent

Based on the theory of shrinkage, capillary force theory, the influence of road concrete additives in common use on surface tension of water is studied, and the results show that the influence of water reducer is very small whereas shrinkage-reducing agent and air entrainer can reduce surface tension of solution significantly. The relation between surface tension and additive dosage are non-linear relation. Each additive has an obvious critical micelle concentration.

从混凝土收缩的基本理论——毛细管张力理论出发，通过道路混凝土外加剂对水的表面张力的影响研究发现，减水剂对水的表面张力的影响很小，而减缩剂和引气剂可以大幅度降低溶液的表面张力，溶液的表面张力随外加剂的掺量呈非线性形式降低，而且都存在临界胶束浓度。

In order to eliminate the disadvantage of manufacture sand, we adulterate it with high-efficiency, water-reducing agent and fly ash.

为了消除机制砂混凝土的不利因素，采用掺加高效减水剂和粉煤灰来提高混凝土的性能，并与天然砂混凝土进行比较。

The Aglet 's platform is developed by IBM company with the Java technology, its function is strong and prefect thus reducing the difficulty of programming.

基于移动Agent的实用系统——— Aglet 平台，是由IBM公司利用纯Java开发的，其功能强大完善，大大降低了程序开发的复杂性和难度。

Addition of a reducing agent and an ampholyte, and supersonic treatment significantly enhanced protein solubilization.

还原剂和两性电解质以及超声处理显著增进蛋白质的溶解，提高蛋白产量。

L-Ascorbic acid is widely used in chemical and biological systems as a reducing agent, mostly in aqueous solution.

L-抗坏血酸是一种广泛应用于化学和生物系统的还原剂，主要以水溶液的形式存在。

Two main ways in industry traditionally were used to prepare chrome tanning agents: one is using sugar as reducing agent, another is using sulfur dioxide.

工业上制备铬鞣剂的传统方法有糖和二氧化硫两种还原方法。

Reducing agent carbon reduces oxide of cobalt, nickel and iron,and sulfuring agent Fe_2S forms trickles of matte at high temperature, inthe process of assembling and settling of trickles of matte slag is washed,reduced metals of iron, cobalt and nickel and sulphide in slag are enrichedin the matte to form cobalt matte and be separated from slag due to theirintimity to the matte, washing of the matte and their settling.

在高温下，还原剂碳将钴、镍、铁氧化物还原成金属，同时硫化剂硫铁矿形成锍滴，在锍滴聚集沉降过程中对炉渣进行&洗涤&，由于金属及金属硫化矿的亲锍性，锍体的&洗涤&作用及金属及金属硫化矿的沉降作用使被还原的钴、镍、铁金属及转炉渣中的金属硫化矿富集到锍体中，与转炉渣分离，形成钴冰铜。

The study of plating process showed the influences of bath components, such as complexing agent and reducing agent, and operation conditions, such as pH value and temperature, on deposition rate.

对镁合金化学镀镍工艺的研究表明，镀液组成如配体浓度、还原剂浓度和操作条件如pH值、温度等影响镀液的沉积速度。

With CO2 as acidifying agent, potassium chromate was directly reduced to chromic oxide hydrate under hydrothermal conditions using formaldehyde as reducing agent.

以CO2气体为酸化剂，小分子有机化合物甲醛为还原剂，通过表面活性剂处理，在水热条件下直接还原铬酸钾水溶液得到水合Cr2O3，继而800℃下煅烧得到球形Cr2O3超细粉体。

The prior materials used for improving the self-contraction of the concrete mainly comprise expansion agent, shrinkage reducing agent and fiber, but the materials are not effective when the materials are used solely.

目前改善混凝土自收缩的材料主要包括：膨胀剂、减缩剂和纤维。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。