earth的例句大全

A Novel Topological Index for QSPR Study of Alkaline-Earth Metal Halides

一种新的拓扑指数对碱土金属卤化物的QSPR研究

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Spectroscopic properties of Er~ ( 3+)-doped alkaline/ alkaline-earth metal modified fluorophosphate glasses

碱金属和碱土金属氟化物对掺Er~（3+）氟磷酸盐玻璃光谱性质的影响

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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.

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。

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Higher catalytic activities were achieved by adding alkaline-earth metal oxides to γ-Al_2O_3, among which the catalytic activity of adding 20% ( mass fraction) of MgO was the best.

实验结果表明，添加碱土金属氧化物的γ-Al2O3催化剂的催化活性比添加酸性氧化物的γ-Al2O3催化剂的催化活性高，其中以MgO质量分数为20%的MgO/γ-Al2O3催化剂的催化活性最高。

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2,4-DCP could be completely converted and the liberation of the inorganic chloride improved remarkably by adding alkaline metal oxides or alkaline-earth metal oxides into CuO/ γ-Al2O3 catalyst after 2 h of reaction at 30 ℃.

碱金属和碱土金属氧化物添加到CuO/γ-Al2O3催化剂，30℃，反应2h，2,4-二氯酚能够被完全转化，并且氯离子的去除率也显著提高。

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Researches on the thermal decomposition reactions of hydroxide of alkaline earth metals for storage of solar energy

碱土金属氢氧化物热分解反应贮存太阳能的研究

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The pyrolysis and gasification are two main methods of biomass thermo-chemical utilization. The alkali and alkaline earth metals ( AAEMs) play an important role during the utilization of biomass which are rich in AAEMs.

生物质的热解和气化是重要的热化学利用方式，而碱/碱土金属作为生物质内富含的元素，对其热利用过程产生了较大的影响。

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Influence of Alkaline Earth Metals on Cobalt-Cerium Composite Oxide Catalysts for N_2O Decomposition

碱土金属对钴铈复合氧化物催化剂催化N2O分解的影响

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The Crystal Structures and Thermal Stability of the Complexes of 2-Oxo-propionic acid ( 4-pyridinecarbonyl) hydrazone with Alkaline Earth Metals

2-羰基丙酸（4-吡啶甲酰基）腙与碱土金属配合物的晶体结构及热稳定性

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A new eluent used for determining alkaline earth metals by ion chromatography& beryllium nitrate-nitric acid solution is suggested.

本文提出一种新颖的用于碱土金属离子色谱法测定的淋洗液硝酸铍硝酸溶液。

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The impact of mixing ratio, alkali metals and alkaline earth metals on the ash melting temperature were discussed.

探讨了混合比例以及碱金属和碱土金属等因素对灰熔融温度的影响规律。

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The fluorescent and colorimetric identification of sensors A-F for the common alkali metals, alkaline earth metals, transition metals and heavy metals were tested, it was found that this type of sensors has a good selective recognition ability for Fe+.

通过探针A-F对常见的碱金属，碱土金属，过渡金属及重金属的荧光和比色识别实验发现，这一类探针对Fe3+具有优异的特定选择性识别能力。

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In a series of reactions, the concentration of H~+, CO_2 and H_4SiO_4, and especially the content of alkali and alkaline earth metals controls the reaction process and determines the type of solid phase weathering products.

在一系列反应中，氢离子、CO2、和H4SiO4浓度，尤其是碱性和碱土金属含量控制着反应过程和固相风化产物的类型。

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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碱土金属下降统一起来。

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The effect is specially obvious with the addition of Ce-rich rare earth.

添加 富铈 稀土和铬合金元素的锯片胎体耐磨性都有提高,其中添加富铈稀土效果尤为明显.

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One theory about the moon is that it is a piece broken off the earth.

有一种关于月球的理论认为它是从地球分离出的一部分.

词典精选例句

Yes you want the date to go perfectly but accept the reality that nothing on this earth is flawless.

是的，你希望约会很完美，但你也得接受现实：这个世界上没有一样东西是没有瑕疵的。

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The abundance of chemical elements in the earth's crust and its major tectonic units

论化学元素在地壳及其基本构造单元中的丰度

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But let us come down to Earth, to the nexus point of your existence in time and space.

让我们先回到地球上来，回到那些在你们生活的时间和空间中那些“不得不说的事”。（译注：后半句这样翻译不知合不合理。）

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The internal constitution of the Earth has been a primary objective of seismologists.

地震学家的主要目标是研究地球的内部构造。

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