查询词典 chemicals

Results The appearance of negative value was due to insufficient reagent purity, finding out in original absorption curve. The reagent contained chemicals besides response theory.

结果 从原始吸光度值的曲线上找到出现负值的原因是试剂纯度不够，试剂中含量有反应原理以外的化学物质。

Based on different filtering accuracy,micron rating(20,55,100,200 μm),and different dosages of chemicals added to the influent,the parameter differences such as turbidity,suspended solids content,FPI value,head loss,filtration cycle,flux,backwash,etc.are compared and studied.

针对不同过滤精度(20、55、100、200μm)的叠片，在不同的加药量下，比较研究了两种过滤器进出水的浊度和悬浮固体含量、周期产水量、FPI值、水头损失、流量、反洗等工艺性能参数差异，试验结果表明，两种过滤器的性能大体相近。

The filtration performance of jy discal filters and arkal discal filters are compared.based on different filtering accuracy,micron rating(20,55,100,200 μm),and different dosages of chemicals added to the influent,the parameter differences such as turbidity,suspended solids content,fpi value,head loss,filtration cycle,flux,backwash,etc.are compared and studied.the results show that these two kinds of filters have similar performance.

采用并联式的过滤系统，对国产的亚高牌叠片式过滤器与以色列arkal公司的叠片式过滤器进行了工艺性能比较试验。针对不同过滤精度(20、55、100、200μm)的叠片，在不同的加药量下，比较研究了两种过滤器进出水的浊度和悬浮固体含量、周期产水量、fpi值、水头损失、流量、反洗等工艺性能参数差异，试验结果表明，两种过滤器的性能大体相近。

However,one of the key chemicals in the method is acetic anhydride,which is in the list...

该方法具有准确度高、重现性好、易于操作的特点，相对误差在3%以内，可以满足生产控制质量的要求。

Hence, the use of acetonitrile for the production of more valuable chemicals and products will be a very important technological achievement.

因此，如何将乙腈转化为其它有用的化学品，是提高经济效益和社会效益的有效途径。

But this mostly lacks the acetyl part, which is good for making brain chemicals involved in memory.

但是，这主要是缺乏乙酰的一部分，这有利于使大脑化学物质参与记忆。

It was in 1897 that a European chemist called Dr Felix Hoffmann produced acetylsalicylic acid from some other chemicals to make a medicine for his father.

1897年，一位名叫费利克斯，霍夫曼的欧洲药剂师从其他化学物质中提取乙酰水杨酸制成药物，为自己的父亲治病。

Features: acid, alkali, salt and other corrosive chemicals.

特性：抗酸、碱、盐等化学物质的腐蚀。

Corrosion-resistant chemicals: the acid and alkali, salt and a variety of media has good durability.

耐化学腐蚀：对酸、碱、盐及多种化学介质具有良好的耐久性。

They require large agricultural acreage, huge volumes of water and chemicals, and traditional farm equipment and labor.

他们需要大量的农业种植面积，大量的水和化学品，和传统的农业设备和劳动力。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。