铍二氟化物极易溶于水,与其它碱土不同。
Beryllium difluoride is very soluble in water, unlike the other alkaline earths.
从白垩或者石灰石中得到的碱土。
所采用的优选的碱土是镁和钙的盐和化合物。
The alkaline earth used therein is salt compound of magnesium and calcium.
但不吸附碱土金属离子,这和聚多胺树脂相同。
It does not absorb the alkaline-earth metal ions and behave as the polyamine resins.
典型土壤选择草甸土、黑钙土、草甸碱土三种。
Selected soils are meadow soil, Black Calcium soil, and meadow alkali soil, respectively.
对碱土金属复卤化物的能隙进行了计算,结果合理。
The calculated results of energy gap on alkaline earth mixed halides are reasonable.
结果表明,MDM可显著改善草甸碱土的理化性质。
Results showed that MDM could obviously improve the physical and chemical properties of the alkali soil.
由二卤代烷与碱金属或碱土金属的多硫化物缩聚而成。
By two alkyl halide with alkali metal or alkaline earth metal polysulfides from condensation.
本文研究了碱土金属氧化物对不饱和聚酯的增稠机理。
The article discusses the thickening mechanism of unsaturated polyesters with alkaline-earth metallic oxide.
得到了开发含镁、碱土金属复合合金的最佳工艺和参数。
Thherefore, the best technics and parameters in developing the alloy are discovered.
主要植物是马唐和鼠尾粟(盐碱土壤的代表植物)等茅草。
The main plant is crabgrass and tail millet (soil salinity representative of plants) and other grass.
这种差异可用于改善碱土金属与过渡金属离子之间的分离状况。
The difference can be used to improve the separation between alkaline earth and transition metal ions.
盐化草甸土分布在相对低洼的部位,苏打碱土分布在微坡地和高平地。
Saline meadow soil distributed in the micro basin, and sodic alkaline soil in micro slope or micro flat.
更广义的范围包括碱土金属。碱是强碱性的,会使红石蕊试纸变蓝色;
More broadly, ammonium hydroxide (see ammonia) and soluble hydroxides of the alkaline earth metals are also called alkalies.
本文就碱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 development of solvent extraction separation of alkaline earth elements was reviewed, according to the classification of extractants.
同时,苏打盐碱土理化性质的改良也为作物生长创造了良好的土壤环境。
At the same time, the improvement of physicochemical properties of soda alkali-saline soils has created the good soil environment for the crops growth.
为了开发高效燃烧固氟剂,通过实验研究了碱土金属化合物的燃烧固氟效果。
In the paper, the test results about fluorine retention in the alkaline-earth metal compounds combustion were studied to develop high-efficient fluoride retention additive.
采用盆栽试验方法,以石膏为对照,探讨硫磺对宁夏平罗盐碱土的改良效果。
Through the pot-culture method, with the gypsum as the comparison, we discussed the effect of applying sulfur on the alkali-saline soil in Pingluo, Ningxia Hui Autonomous Region.
报道了乙烷在以碱金属氯化物作为助剂的碱土金属氧化物催化剂上的氧化脱氢。
The oxidative dehydrogenation of ethane to ethylene was studied over alkaline earth oxides promoted with alkaline metal chlorides.
黑龙江省西部地区是我省农牧业生产的重要基地,盐碱土占该区面积2.1%。
The west area province is the important agriculture and animal husbandry production base of Heilongjiang province. The saline-alkali soil area accounts for 2.1% of all the area.
对碱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。
In this paper, chemical storage materials of hydrate of alkaline earth metals at low temperatures are rported by differential scanning calorimetry (DSC).
通过盆栽及田间小区试验,研究了改良剂MDM对松嫩平原草甸碱土的改良效果。
The effect of the soil conditioner MDM on ameliorating the meadow alkali soil was investigated by pot culture and field experiment.
EDTA单独添加的缓蚀作用很小,但它可以增强碱土金属氢氧化物的缓蚀作用。
Their inhibition is enhanced by the addition of EDTA, while EDTA itself has only a little inhibition effect.
借助于可见光谱的测定,考查了它们在溶液中与碱金属和碱土金属盐等的配位性能。
The complexation properties of them with alkali and alkaline earth metal ions have been investigated by means of visible spectra in solutions.
采用田间小区试验,研究了土壤改碱剂CLS对吉林省西部苏打盐碱土的改良效果。
To improve the serious alkali soils in western Jilin province, the effect of the soil conditioner CLS on serious alkali soils was studied by field experiment.
硅灰石作为碱土金属硅酸盐,在普通陶瓷坯体中起助熔的作用,降低坯体的烧结温度。
The wollastonite as the alkali earth metal silicate, helps the melt in the ordinary ceramic body the function, reduces the body the agglutination temperature.
“煎盐”则指提取柴灰或碱土中的卤水,用浅而阔的盘熬干以制取盐,这一专称唐代始见。
The latter which appeared in the tang dynasty is to decoct the brine extracted from the ash or alkaline earth in flat plates.
“煎盐”则指提取柴灰或碱土中的卤水,用浅而阔的盘熬干以制取盐,这一专称唐代始见。
The latter which appeared in the tang dynasty is to decoct the brine extracted from the ash or alkaline earth in flat plates.
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