查询词典 chemicals

The 2002 edition of "Hygienic Standard for Cosmetics" in the provisions of banned cosmetics has 496 kinds of chemical substances, while the 2007 version by the new and change, a total of 1286 kinds of banned chemicals, including chlorine acetaldehyde, chlorinated methane, trichloro toluene.

在&2002年版卫生标准的化妆品禁止在化妆品的规定&的496种化学物质，而新的变化，但一千二百八十六种禁止化学品，包括氯乙醛，氯化甲烷，三氯共2007版甲苯。

Assuming chemical concentrations in water were relatively stable during sampling period, it is possible to estimate concentrations for most of chemicals with log K〓 larger than 3 by the measured concentrations in triolein.

根据平衡模式，SPMD技术、鱼样富集、沉积物吸附所得污染物浓度，三者之间应存在较好的相关关系。

Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, ChinaAbstract: Desorbing bacterium from suspended particle surfaces by adding some different chemicals, such as Zwittergent3-12,EGTA and tryptone etc., and ultrasonic surging, comparing the difference of HPC value between before and after desorption, and then analyzing the size and number of suspended particles, it can be concluded that the effect of suspended particles in drinking water on HPC determination is significant.

本试验采用添加有助于解吸的化学试剂结合不同超声时间、超声温度下的超声波振荡对吸附在颗粒物上的细菌进行解吸，对比解吸前后HPC测定结果的差异，再对颗粒物数量、粒径进行分析，阐述颗粒物对HPC测定结果的影响。

This is by the phosphor in the nature of chemicals contained in the set, for example, tungstic acid coated magnesium, fat, blue light, cadmium borate painted light red hair color.

这是中集在中，例如，钨酸镁涂层，脂肪，蓝光发光的化学性质，镉，硼酸画淡红色的头发颜色。

During the process of preservation and transportation of oil,the inner surface of oil turb suffer a lot of corrosion and damage because of the influence of environment and chemicals,this makes the tube skin become thinner and seriously disturbs the process of preservation and transportation of oil.

在石油储运过程中，由于油管周围环境以及石油内某些化学物质的影响，油管内壁要受到不同因素的腐蚀和破坏，使壁厚变小，严重影响石油的运输。

This method can reduce sludge production radically and virtually. The effectiveness of eight metabolic uncouplers in reducing sludge production from activated sludge process were compared to screen effective, cheap and non-toxic available uncoupling chemicals and determined the long-term uncoupler effects of 3, 3', 4', 5-tetrachlorosalicylanilide in activated sludge batch cultures.

首先比较筛选了对污泥的减量化效果好、价廉、无毒的化学解偶联剂；在此基础上，研究了添加3，3′，4′，5-四氯水杨酰苯胺的分批活性污泥工艺的剩余污泥减量化效果，以及对工艺运行效能和污泥性能的影响；着重进行了添加TCS的活性污泥工艺、好氧—沉淀—缺氧工艺、添加TCS的OSA联合工艺的连续运行试验研究。

It haswidely been used in the industry of medicine and fine chemicals, especially applyingin the field of medicine, which are unreplaced.

在医药和精细化工行业中有着广泛的用途，尤其在医药领域的应用，有着不可替代的功能。

The fatty oil from the seeds of M. cochinchinensis was extracted with petroleum ether, and the saponification was carried out with potassium hydroxide. The unsaponifiable matter was isolated and purified by silica gel column chromatography, and the structures of their constituents were elucidated by means of IR, MS, 1H-NMR, and authentic chemicals.

石油醚提取脂肪油，氢氧化钾进行皂化反应，对不皂化部分进行硅胶柱色谱的分离和纯化，用IR，MS，1H-NMR等波谱技术和对照品对照等方法进行化合物的结构鉴定。

In the paper, the factors of the pressure of gas-gathering pipes and high-pressured ammonia water was controlled unstably in the period of Linhuan Coking Limited Liability Company began to product were analyzed, then effective methods about how the coke workshop and chemicals workshop coordinate to control the pressure of gas-gathering pipes and high-pressured ammonia water well in production were made.

文章对临涣焦化股份有限公司投产初期集气管压力与高压氨水压力控制中的不稳定因素进行了分析，并对炼焦车间与化产车间在生产中怎样配合来做好集气管压力与高压氨水压力的控制提出了行之有效的方法。

According to this conclusion, unswelling liming technology was brought forth, and it was demonstrated that liming chemicals was much easy to penetrate into the hide and limed hide had less lime crease in this process, the resultant leather had good elasticity, less loose grain and less region difference.

据此，实验中提出了不膨胀脱毛浸灰工艺，实验表明在不膨胀状态进行浸灰成革富有弹性、不易松面，部位差别小，而且浸灰时可以降低液比，减少废水的产生。

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。