英[ˌkɒns(ə)nˈtreɪʃ(ə)n] n.浓度;集中;【化】提浓;稠密度 网络集中课程;含量;浓聚物 复数:concentrations 搭配 同义词 反义词 英汉 英英 网络释义 n. 1. 【化】提浓,蒸浓,浓缩;浓度;稠密度;【矿】汰选,选矿,富化 2.
[C] [technical] the amount of a substance contained in a liquid 〔液体中某物质的〕浓度; 【例句】 Additives are expensive but are used in very low concentrations. 添加剂很昂贵,但都以很低的浓度使用。 【例句】 allowable concentrations of pesticides in drinking water 饮用水中允许的杀虫剂浓度...
2、The concentration of acid in vomitus or aspirate need not reach this limit.呕吐物或吸引液内酸的浓度不需要达到这一程度。3、The colon is the locus of a large concentration of bacteria.结肠是大浓度的细菌所在地。4、What is the concentration of salt in sea water?海水含盐的浓度...
17. The article introduces method of direct measuring chromium in high concentration leather waste water, through comparing with analyzing result of origanal experimental method. 介绍了应用差示分光光度法直接测定高浓度皮革废水中Cr的方法,通过与原实验方法分析结果的对比,获得了满意的结果,能基本满足环境监测...
More often than not 通常情况下, I try tosteer myself clear of 避开technological devices and stay in a peaceful and quiet environment. Sometimes, I listen to somesoothing 舒缓的and relaxing music likethe sound of water streaming 水流的声音or the sound ofthe surf 海浪toenhance 增强,提高my con...
concentration of landholding 土地集中 concentration polarization 浓差极化 相似单词 concentration n. 1.[C,U]集中 2.[U]专心,专注 3.[U]浓缩;浓度 high concentration 高强度 boiler(water)concentration 炉水浓度 最新单词 hardboard是什么意思及反义词 n. 硬质纤维板 hardball的中文翻译及音标 n. 强...
While ion-ion interactions apparently always weaken salt exclusion relative to the hypothetic single ions, the effect of ions on membrane permittivity may be more complex. In water, added salts reduce the dielectric constant due to progressive immobilization and hindered rotation of water within prima...
But if salt needs to interact with liquid water, how does it do anything when temperatures are stubbornly below freezing, and water should already be in the form of ice? That’s where cars help clear their own way by creating friction and, in turn, heat....
4.(Chemistry) the strength of a solution, esp the amount of dissolved substance in a given volume of solvent, usually expressed in moles per cubic metre or cubic decimetre (litre). Symbol:c 5.(Chemistry) the process of increasing the concentration of a solution ...
Concentrations of major metals (Na, K, Ca, Mg) and some trace metals (Fe, Zn, Mn, Ni, Cu, Co, Pb, Cr, Cd) were determined in water, sediment, benthos and some common fish species from Lake Qarun. Water and sediment samples were collected from seven stations where, the benthos and...