英语释义

1. any of the divalent strongly basic metals of group II of the periodic table comprising beryllium, magnesium, calcium, strontium, barium, and radium — called also alkaline earth — see Periodic Table

2. any of the bivalent strongly basic metals of group II of the periodic table comprising beryllium, magnesium, calcium, strontium, barium, and radium

片语

alkaline e earth metal堿土金属

alkaline-earth metal complex[化学]

alkaline-earth metal component堿土金属元素化合物

alkaline-earth metal salts堿土金属盐

alkaline-earth metal complexes堿土金属配合物

alkaline-earth metal silicates堿土金属硅酸盐

alkaline-earth metal oxide涵义堿土金属氧化物

英汉例句

• 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。

• 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。

• 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。

• alkaline earth metal elements ca, mg appeared in the form of composite oxides, and the majority of composite precipitates were rich in manganese(mn) and sulphur(s).

  堿土金属元素ca、mg以复合氧化物的形式出现，且大多数复合析出物都富含mn和s。

• 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。

• 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。

• 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。

• 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。