1) Chalcogenide
碱土硫属化合物
2) alkaline earth
碱土
1.
China is rich in rare earth and alkaline earth elements.
结合我国富有资源稀土和碱土,介绍了稀土和碱土在镁合金中的作用和影响,概括了它们在Mg-Al系耐热镁合金中的应用现状,以及在研制汽车用耐热镁合金中所发挥的重要作用。
3) alkaline-earth metals
碱土
1.
The characteristics of deoxidization of alkaline-earth metals-contained compound alloys has been introduced in this paper, conclusion can be drawn that it will be promising developing alkaline-earth metals-contained alloys which can be applied in purified steel manufacture.
介绍了碱土复合合金的脱氧特性,指出开发适用于纯净钢的碱土金属复合合金有重要的应用价值。
2.
The practice shows that the control and refinment are selected to produce pure alkaline-earth metalscompound alloys.
指出杂质的控制与精炼是生产纯净碱土复合铁合金的必然选择。
4) alkaline soil
碱土
1.
By the field experiment,the changes of eigenvalues such as salt-composition、pH、alkalinity、permeability and hardness of soil in the process of improving alkaline soil with desulfurized gypsum were investigated.
本文通过田间试验,研究了脱硫石膏在改良碱土过程中对碱土特征值(盐分组成、pH值、碱化度、土壤渗透性及硬度)的影响。
5) alkali soil
碱土
1.
The results indicated that the soil total salt at the research area was generally less than the saline target (<5 g/kg),the total alkalioity was bigger than alkali soil target(>2.
结果表明:研究区梭梭林立地土壤具有总盐含量普遍小于盐化指标(<5 g/kg)、总碱度大于碱土指标(>2。
6) Alkaline-earth metal
碱土金属
1.
Exploration and research of miniaturization of property experiment of alkaline-earth metal compunds;
碱土金属化合物性质实验的微型化研究
2.
The interaction mechanism among magnesium,alkaline-earth metals and other chemical elements is studied.
研究了镁、碱土金属与各化学元素的相互作用机理，含镁、碱土金属复合合金的制取因素，合金的制取条件和方法。
3.
The alkaline-earth metal complexes with mucic acid was successfully prepared via gel formation and characterized by elemental analysis,FT-IR measurements.
采用凝胶法合成了碱土金属—粘液酸配合物的晶体。
参考词条
补充资料：Fe3Al基金属间化合物高温合金
Fe3Al基金属间化合物高温合金
Fe_(3)Al-base intermetallic compound superalloy
Fe3AI JIJ一nshujlon huahewu gaowen heJinFe3AI基金属间化合物高温合金(F e3AI一baseintermetallie eomPound suPeralloy)以Fe3AI相为基体的金属间化合物高温合金。该合金具有优异的高温抗氧化、抗硫化腐蚀性能，合金密度较小，因为不含贵重元素，故价格低廉，很适合于在高温氧化、硫化腐蚀的环境中工作。Fe3AI合金有两个不足之处:室温很脆，伸长率仅3%左右;高温强度不足。通过添加合金元素铬、硼，采取温加工工艺和合理的热处理制度，基本上解决了室温脆性问题，室温拉伸伸长率提高到15%左右。提高强度的途径是进行合金化，添加错、妮、铝等元素进行固溶强化和析出第二相进行时效强化，使合金室温拉伸强度达到l000MPa，600℃拉伸强度达到560MPa。Fe3AI基金属间化合物高温合金可以制造加热元件、炉子紧固件、热交换器、汽车用管材、石油管道和磁性元件等。该合金在真正走向实用之前，应在冶炼工艺和热加工工艺方面进行改进。 (}马培立卜
说明：补充资料仅用于学习参考，请勿用于其它任何用途。