alkali-earth
英 [ˈælkəlaɪ ɜːθ]
美 [ˈælkəlaɪ ɜːrθ]
碱土
双语例句
- The method is hopeful to be used in synthesizing other alkali-earth aluminate and silicate and other luminescent materials.
该制备方法有望在其他铝酸盐和硅酸盐系长余辉发光材料的制备中得到应用。 - K, Cu and Mn are the common promoters and there are many studies about them, however the studies about alkali-earth metal promoters are very little and not systematical.
K、Cu、Mn是比较常用的助剂，文献中有关这几种助剂的研究很多，然而有关碱土金属助剂影响的报道很少，并且很不系统。 - A New Activity Coefficient Model for Aqueous Alkali-Earth Metal Solution at High Temperature and Pressure
高温高压碱土金属溶液活度系数新模型的研究 - Vibration Spectra of Alkali-Earth Metal Phthalates
碱土金属邻苯二甲酸盐的振动光谱 - The latter is rich in Cl but poor in Tl, high in I, rich in heavy sulfur isotope, and relatively depleted in alkali-earth group elements.
后春富氯，低铊，高碘，富重硫同位素，相对贫碱土族元素。 - Effects of different alkali-earth and rare earth promoters on MgO catalysts for oxidation coupling of methane have been studied and effects of the added oxides, carbonate and sulfate promoters on C2 selectivity and yield of MgO catalytic system have also been investigated.
研究了在MgO中添加碱土金属、稀土等助剂对甲烷氧化偶联反应的作用，并考察了添加氧化物、碳酸盐、硫酸盐助剂对MgO体系催化剂的C2选择性和收率的影响。 - In the past years, studies of EMF are mainly on alkali metals, alkali-earth metals and some transition metals encapsulated into bigger fullerenes.
近年来，EMF研究主要集中于碱金属、碱土金属、过渡金属内包于较大碳数富勒烯所形成的包合物，较小富勒烯包合物由于实验重复性差等原因研究较少。 - Cubic boron nitride ( cBN) is transformed from hexagonal boron nitride ( hBN) under high pressure and high temperature with the occurrence of the catalyst such as alkali metals, alkali-earth metals and their nitrides, boride and boron nitride etc.
立方氮化硼（cBN）是在碱金属、碱土金属及它们的氮化物、硼化物、硼氮化物等触媒参与，在高压高温条件下由六方氮化硼（hBN）转变而成的。 - Influence of Alkali-Earth Metal Doped on Structure and Conductivity of C_ ( 60) Thin Films
碱土族金属掺杂对C（60）薄膜的电子结构与性质的影响 - The results show that HY exchanged with alkali-earth metal cation or rare-earth metal cation has higher stability than that of HY.
结果表明，用碱土金属离子或稀土金属离子交换改性的HY分子筛在烷基化反应中具有比HY更好的稳定性。 - A Study of Toughness and Abrasion Resistance of Low Chromium White Cast Irons Modified by Rare-Earth and Alkali-Earth Metals
稀土-碱土金属变质低铬白口铸铁韧性及抗磨能力的研究 - This crude oil decalcification technology makes the electric desalting process capable to remove the alkali-earth metals and part of the heavy metals in addition to the alkali metals in crude oil.
原油脱钙技术使原油脱盐过程从原来只能脱除部分无机碱金属化合物过渡到脱除原油中的碱土金属及部分重金属，具有推广价值。