查询词典 alkali metal

Stone is from rock, and rock is consist of the mineral, the mineral contain iron is the source of the iron in stone products , iron element spread widely in natural world, but most of them appear to be compound, iron element is belong to medium activity metal, under high temperature is easily to be strongly acted with oxygen, sulfur, chlorine, and easily dissolve in abio-weak acid solution and strong hydrochloric acid solution, at the same time, the strong alkali solution also corrade the iron.

石材是岩石经加工后所产生的制品，岩石是由矿物组成的，其中含铁矿物是石材中铁质的来源。铁元素在自然界中分布甚广，但大多以化合物的方式出现，由于铁元素属中等活泼性的金属，在高温下易和氧、硫、氯等元素发生强烈反应，并易溶于无机稀酸和浓盐酸的溶液中，同时浓碱溶液也易侵蚀铁。

The interactions of alkali and alkaline-earth ions and rare—earth metal ions with saccharides, resulting in the formation of saccharide adducts, have been investigated in great detail.

本文主要从糖的构型、构象、金属离子半径的大小和电荷的影响等方面入手分别研究了固体和水溶液中糖与金属离子的配位现象。

And its ablative property the improved. The coating produced by F series curing agents has good adhesion with metal, thus the anticorrosive coat can resist high-temperate, acid, alkali.

所制成的涂料在高温下转化为碳基涂层，400℃、1h仍光亮致密，与金属仍有良好的附着力，从而得到耐高温、耐酸、耐碱的防腐涂层。

Electroplate waste water include, include cyanogens waste water, include chromium waste water, heavy metal waste water and sour alkali waste water generally.

电镀废水一般包括含氰废水、含铬废水、重金属废水及酸碱废水。

The complexation properties of them with alkali and alkaline earth metal ions have been investigated by means of visible spectra in solns.

方法简便，产率较高，借助于可见光谱测定，考查了它们在溶液中与碱金属和碱士金属盐等的配位性能。

By means of static and dynamic experiments, lots of research on the effect of micro-quantity heavy metal ions removal by weakly basic anion exchange resins from drinking water with alkali metals, alkaline-earth metals and anions at high concentration, has been done.

本文采用静态和动态两种试验方法，对弱碱性阴离子交换树脂在碱金属、碱土金属离子以及阴离子相对较高浓度的背景下去除饮用水中微量重金属离子（以Hg2+为研究处理对象）的效果进行了大量试验研究。

Its main components include Capsanthin and Capsorubin.It is a kind of dark-red oil-dissolving liquid and the clor and luster are bright and gorgeous with characteristics of strong tinting power,light,heat,acid and alkali resistant,not being affected by metal ion.It is soluble in oil and ethanol.

主要成份为辣椒红素和辣椒玉红素，为深红色油溶性液体，色泽鲜艳，着色力强，耐光、热、酸、碱，且不受金属离子影响；溶于油脂和乙醇，亦可经特殊加工制成水溶性或水分散性色素。

The novel process of preparation of DNS by means of dioxygen liquid-phase oxidation of NTS with synthesized metal phthalocyanine complex catalyst in alkali solution under mild condition were systematically investigated for the first time.

首次以金属酞菁络合物为模拟酶催化剂，在碱性水溶液中，于温和条件下，研究了4-硝基甲苯-2-磺酸催化氧化制取4，4'-二硝基二苯乙烯-2，2'-二磺酸的方法和工艺。

The luminescent propetties of RE activated tungstates are dealt with in respect to mixed alkali earth metal tungstates,fluorotungstates,isopolytungstates,heteropoly tungstates.

本文从单钨酸盐、混合二价金属钨酸盐、卤钨酸盐、同多钨酸盐、杂多钨酸盐等方面综述了掺杂稀土离子钨酸盐的发光特性研究情况。

The results indicated that the adsorbance of adsorbed CO in the presence of alkali and rare-earth metal oxide decreased, and thus suppressed the nick loss in the form of Ni〓 in the POM process.

CO-FTIR的结果表明，锂和镧的添加可明显减少CO在NiO/γ-Al〓O〓上的吸附，从而抑制反应过程中羰基镍的生成和流失，同时也抑制了CO的歧化积碳和在表面进一步氧化成CO〓。3。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷