英语释义

• any of the bivalent metals of group II of the periodic table (calcium or strontium or barium or magnesium or beryllium)

片语

alkaline-earth sulfides堿土硫化物

Alkaline-earth elements堿土元素

alkaline e earth metals堿土金属

alkaline e earth metal堿土金属

alkaline-earth borophosphate堿土硼磷酸盐

alkaline e earth堿土族

alkaline-earth oxide翻译

英汉例句

• the long lasting phosphorescent materials composing of alkaline earth aluminates, which were found in 1990s, are a kind of important energy power and saving energy materials.

  90年代发现和发展起来的铝酸盐体系长余辉发光材料是一类重要的新型能源材料和节能材料。

• the mechanism of thermal decomposition for alkaline earth metal benzoates was studied by using tg, dta, ir and gas chromatography_mass spectrometer.

  用dta和tg研究了堿土金属苯甲酸盐在氮气气氛中的热分解过程 ，并用红外光谱、色 -质联用表征了热分解产物。

• the alkaline earth used therein is salt compound of magnesium and calcium.

  所采用的优选的堿土是镁和钙的盐和化合物。

• the results showed that it is feasible to synthesis the rare earth alkoxide by taking the alkaline earth alkoxides as the providers of alkoxy.

  结果表明，以堿土金属醇盐为烷氧基提供者制备稀土金属醇盐是可行的。

• beryllium: chemical element, lightest of the alkaline earth metals, chemical symbol be, atomic number 4.

  铍：堿土金属中最轻的化学元素，化学符号be，原子序数为4。

• the development of solvent extraction separation of alkaline earth elements was reviewed, according to the classification of extractants.

  本文就堿土金属离子萃取分离的进展情况，按萃取剂的分类进行了综述。

• the results of determining the alkaline and alkaline earth metals in the treated gasoline showed there was no loss of metals from the catalysts.

  对脱砷-加氢-脱氯汽油中堿金属和堿土金属的测定结果表明，不存在催化剂的金属流失问题。

• orthophosphite ions produced by oxidation of hypophosphite in an electroless nickel plating bath can be removed by precipitation with an alkali metal or alkaline earth metal cation such as calcium.

  在无电镀镍浴中因次磷酸根氧化而产生的亚磷酸根离子，可以通过堿金属或堿土金属阳离子如钙的沉淀作用而去除。

• alkaline earth metal ions were determined with tartaric acid ethylenediamine as mobile phase.

  用非抑制型离子色谱法测定了堿金属和堿土金属离子。

• but the fact that the excess bariums are responsible for electron emission may be reconciled with the deficiency of alkaline earth metals during life by the dynamical surface emission center model.

  然而超额钡仍然是发射电子的泉源，可以通过动态表面发射中心模型而与寿命中堿土金属下降统一起来。

• a photoluminescent material comprising a composition of halogen-substituted alkaline earth metal aluminate doped with at least one rare-earth element activator.

  一种光致发光材料，其包含掺杂有至少一种稀土元素活化剂的卤素取代的堿土金属铝酸盐的组合物。

• in this paper, chemical storage materials of hydrate of alkaline earth metals at low temperatures are rported by differential scanning calorimetry (dsc).

  对堿土金属的水合氯化物作为一种低温化学蓄热材料进行了相应的dsc研究。

• all alkaline earth elements have an oxidation number of +2, making them very reactive. because of their reactivity, the alkaline metals are not found free in nature.

  所有的堿土金属元素的化合价都是+2，这使他们非常活泼，因为他们非常活泼，也不在自然界中直接出现。

• methods and recent development of isolation of structurally characterizable alkali, alkaline earth and lanthanide metal ketyl radical complexes were reviewed in the paper.

  介绍了利用金属离子的配位作用捕获并分离重要有机反应中间体——自由基中间体的研究方法和最新进展。

• more broadly, ammonium hydroxide (see ammonia) and soluble hydroxides of the alkaline earth metals are also called alkalies.

  更广义的范围包括堿土金属。堿是强堿性的，会使红石蕊试纸变蓝色；

• because of high alkaline earth metal content, the reduction swelling of baotou pellet makes blast furnace operation very difficult.

  包头白云鄂博矿堿金属含量高，球团还原膨胀率高，给高炉冶炼带来很大困难。

• this article deals with the toughening mechanism of pp composite filled with alkaline earth salt and effects of amount of alkaline earth salt used on the properties of the composite.

  本文研究了堿土金属盐填充聚丙烯复合材料增韧机理及堿土金属盐含量对填充体系性能的影响。

• the difference can be used to improve the separation between alkaline earth and transition metal ions.

  这种差异可用于改善堿土金属与过渡金属离子之间的分离状况。

• the calculated results of energy gap on alkaline earth mixed halides are reasonable.

  对堿土金属复卤化物的能隙进行了计算，结果合理。

• by two alkyl halide with alkali metal or alkaline earth metal polysulfides from condensation.

  由二卤代烷与堿金属或堿土金属的多硫化物缩聚而成。

• researches in and application of lewis acid, bronsted acid, alkali, alkaline earth and molecular sieve catalysts were described in detail.

  综述了l酸与质子酸、堿（土）金属和分子筛催化剂在合成反应中的研制与应用情况，指出了分子筛催化剂是一种极具开发潜力的催化剂。

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

  借助于可见光谱的测定，考查了它们在溶液中与堿金属和堿土金属盐等的配位性能。

• developing alloy supporters, new pd-only twc, transition metal oxides and alkaline earth oxides as promoters will be the research points for twc.

  开发金属合金载体，以及新型单钯催化剂、过渡金属型或稀土钙钛矿型催化剂是今后三效催化剂研究的热点。

• three kinds of atoms are avaliable for c_(60) doping:alkali metal, alkaline earth metal and other elements.

  从掺杂原子类型分主要有堿金属掺杂、堿土金属掺杂和其它原子掺杂。

• a novel armed crown ether has been synthesized and its chromophoric sensor behavior and the binding ability with alkali metal and alkaline earth cations were investigated.

  本文设计合成了一种新型臂式冠醚，并研究了它对堿（土）金属离子的生色传感和选择性键合行为。