查询词典 laboratory

In order to produce environment-friendly cement,cement clinker was partly replaced by limestone powder in laboratory.

为生产环境型水泥，用石灰石粉置换部分水泥熟料的方法进行了实验。

On the basis of characteristic analysis on all kinds of mineral tailings of copper lead zinc, mineral tailings was classifying according to its application. At the same time, the calcining experiment for twenty material prescriptions of the mineral tailings substituting the clunch or mineralizer mixed with different grades of limestone was actualized in the laboratory's heating kiln under the different temperature. After the fCaO analysis and the X-diffraction test to the calcined samples, the reasonable prescriptions and optimal calcining condition were put forward for different kinds of mineral tailings used to substitute the clunch or mineralizer, the research conclusion offers the instructional reference for the large-scale industrialization production.

同时，对尾矿用于代粘土和矿化剂配不同品位石灰石的20个生料配方进行了实验室高温炉不同温度下的煅烧试验，并对煅烧后的熟料样品进行了游离CaO和X衍射分析，得出了不同尾矿用于代粘土或矿化剂的合理配方和煅烧工况，从而为大规模产业化利用提供指导性参考依据。

Once again , armstrong and his co-author examined both laboratory and field studies conducted by other researchers .

阿姆斯特朗和他的合著者再次考察了其他研究人员所做的实验室及现场研究。

BKD-1 which was synthesized in the laboratory is an effective coagulator for the leachate to decrease COD、color and odor, and the sediment velocity is fast. The function of the-OH group was identified by IR. Fenton, the reagent was studied systematically for leachate processing; Activated charcoal acts as a catalyst in the oxidation-reaction.

本研究采用自行研制高效混凝剂—BKD-1预处理渗滤液效果明显好于其它常规无机混凝剂和有机絮凝剂PAM，COD和色度去除率较高，絮体沉降快，采用红外光谱分析表明羟基架桥作用是该混凝剂混凝的主要机理之一。

State Key Laboratory of Coal Resources and Safety Mining,Beijing 100083,China

煤炭资源与安全开采国家重点实验室，北京 100083

One coauthor directs the University of Washington Virology Laboratory, which has been instrumental in diagnosing HSV infections.

一名共同作者主持华盛顿大学病毒学实验室，在诊断HSV感染上有相当帮助。

Two-factor-intersecting experiment was designed to evaluate the effects of temperature and salinity on the antioxidant enzymatic activities in the muscles of cobia juveniles under the laboratory conditions.

在实验室条件下，采用两因素交叉分组的方法，初步研究了环境因子对军曹鱼幼鱼肌肉抗氧化酶比活力的影响。

In order to improve the soybean quality and the seed purity, the surface physical properties of both soybean and cocklebur were analyzed, and the experiments of the removing pattern, adhesion mechanism and separating time were made on different materials in laboratory.

为了提高大豆的商品质量及种子纯度，该文对大豆与苍耳二者的表面物理特性进行了分析，并对其在不同材质上的运动性能、粘结机理、分离时间等条件进行了台架试验。

Scientific investigation based on the use of computational simulations that codify understanding of some natural phenomenon, particularly one that can't be studied in a laboratory setting such as cosmological phenomena.

利用计算模拟整理某些自然现象作基础科学的研究，特别是那些不能在实验室环境学习的，例如宇宙学现象。

In the one half part, according to the strontium nature, thermodynamic calculation of correlative reaction and the principle of the vacuum aluminothermy reduction process, with the laboratory findings of preparation strontium by vacuum aluminothermy reduction compared and analyzed in different parameter conditions, a variety of factors which effect the decomposition rate of SrCO_3 and the percent reduction of strontia are gotten out. The factors include that the decomposition rate of SrCO_3 is influenced by different addition and pressure. They also include that the percent reduction of strontia is influenced by excess coefficient of reducing agent aluminium powder, the particle size of raw material or reducing agent, the pressure of barbecuing, temperature and reduction time. According to those, we can draw the conclusion as follows:(1) Decomposition temperature of SrCO_3 is decreased by adding carbon and alumina in different degree.(2) With quantitative carbon added under the vacuum condition, the decomposition temperature of SrCO_3 is decreased obviously, which can fall 150℃ compared with atmospheric pressure.(3) In keeping 1150℃ of 2.5h, under the 5Pa vacuum condition, the decomposition rate of SrCO_3 nearly keeps in 99% steadily.

在前半部分的真空铝热还原法中，根据锶的性质、相关反应的热力学计算及真空铝热还原法原理，通过对不同参数条件下的真空铝热还原法生产金属锶的实验结果的分析比较，得出了影响SrCO_3的分解率和氧化锶的还原率的种种因素，具体因素包括不同添加剂、不同气压对SrCO_3分解率的影响，还原剂铝粉的过量系数、原料与还原剂的粒度、制团压力、温度和还原时间等对氧化锶还原率的影响，得出具体结论如下：(1)添加碳和Al_2O_3能不同程度的降低SrCO_3的分解温度；(2)真空条件下加入一定量的碳可显著降低SrCO_3的分解温度，比之常压下可降低150℃之多；(3)在1150℃恒温2.5h、真空度达到5Pa的条件下，SrCO_3的分解率几乎保持稳定在99％；(4)氧化锶的还原率随还原剂过量系数的增大而增大，但是趋势越来越小，当过量系数超过25％后，氧化锶的还原率几乎不再增加；(5)氧化锶的还原率随原料与还原剂的粒度的变细而增加；(6)氧化锶的还原率随制团压力的增加而增加，但超过一定值后，氧化锶的还原率反而会下降；(7)氧化锶的还原率随还原温度的升高而增加；(8)氧化锶的还原率随还原时间延长而增加，在本实验条件下，超过2.5h趋于稳定。

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。