二金属的

Ourresults show that only when the s-d mixing is strong enough,can the bilinear orthe biquadratic coupling show an oscillatory behavior in the experimental range ofthe spacer thickness.

我们的结果表明，只有在s-d混合作用足够强的时候双线性和双二次耦合强度才会在实验观测的中间非磁金属夹层厚度的范围内表现为中间夹层厚度的振荡函数。

For more than two decades the electron correlation induced metal-insulator transition and its characteristic has been one of the challenging problems in condensed matter physics.

近二十年来，一维关联电子系统吸引了人们的注意，特别是由关联而导致的金属—绝缘体相变以及它的一些特性已成为低维凝聚态物理领域中的一个有争议的热点。

Eichhornia crassipes and Hosta ventricosa is used as experimental material to study Cd stress on the two plants growth, chlorophyll content, MDA and root peroxidase activity and other physiological indicators to investigate the effect of Cd on the toxic effect of higher plants,with a view to Cd pollution Phytoremediation providing a theoretical basis.

以凤眼莲和紫萼玉簪为实验材料，研究镉胁迫对凤眼莲和紫萼玉簪的生长、叶绿素含量、丙二醛含量及根系过氧化物酶活性等生理指标的影响，探讨镉对高等植物的毒害效应，以期为重金属镉污染的植物修复技术提供理论依据。

Some of the Fe will be oxidized to Fe resulting in the formation of the blue ferrocenium salt.

纯的环茂二烯溶液是无色的。在其它有机金属化合物的制备中，要努力去减少氧气。

Some of the Fe will be oxidized to Fe resulting in the formation of the blue ferrocenium salt.

纯的环茂二烯溶液是无色的。在其他有机金属化合物的制备中，要努力去减少氧气。

Different alkaline earth metal ions, such as Ca(superscript 2+), Mg(superscript 2+) and Zn(subscript 2+), were introduced and their influences on the working characteristics, crystalline behavior as well as the electrical properties were studied.

通过引入Ca(上标 2+)，Mg(上标 2+)，Zn(上标 2+)等不同的二价金属离子，重点讨论了它们对玻璃的特征温度、分相析晶行为以及膨胀系数、电学性质的影响。

According to the researches, in order to obtain HP295 steel of high quality, the followings are some measurements and suggestions: optimizing the operation of Ar blowing to help the floating of the inclusions; strengthening the protective casting to avoid the second oxidization; taking rare earth treatment or alkaline-earth metals treatment to improve the distribution and the morphology of inclusions.

根据本研究结果，为了提高HP295钢质，在目前武钢的工艺条件下，减少和改善钢中非金属夹杂，可采取的措施有：优化吹氩工艺，促进夹杂去除；加强对钢水的保护，避免二次氧化；对钢液进行稀土或碱土金属处理以改善夹杂物分布和存在形态等。

The main metallurgical characteristics of chrome is easy to rapidly oxidized to form a refractory oxide chromium oxide (Cr203), thereby increasing the possibility of weld metal inclusions.

铬的主要冶金特征是易于急剧氧化，形成难熔的氧化物三氧化二铬(Cr203)，从而增加了焊缝金属夹杂物的可能性。

Acetic acid equipments using material in PTA, PVA, aldehyde oxidation and methyl alcohol carbonyl synthetic four plants in chemical industry and chemical fibre production are analyzed.

对化工化纤生产中的精对笨二甲酸、聚乙烯醇、乙醛氧化生产醋酸与甲醇羰基合成醋酸4个装置醋酸设备用材进行分析，并对含Cl-、含Br-、含I-的醋酸及含Cl-的甲乙混酸对不锈钢、铜、钛与镍基合金等金属材料腐蚀原因作了讨论。

X 6.36(3)? is formed.Liquid-liquid extraction experiments, between twelve heterocyclic thioalkoxycalix[4]arene on the lower rim, fifteen heterocyclic thioacetamidecalix[4]arene on the upper rim and Na~+、K~+、Cs~+、Mg~(2+)、Cu~(2+)、Co~(2+)、Cd~(2+)、Ni~(2+)、Pb~(2+)、Hg~(2+) and Ag~+ picrates, have been carried out and their results are compared.

分别将十二个下沿含有杂环硫烷氧基杯芳烃衍生物和十五个上沿含有杂环硫乙酰胺基的杯芳烃衍生物与Na~+、K~+、Cs~+、Mg~(2+)、Cu~(2+)、Co~(2+)、Cd~(2+)、Ni~(2+)、Pb~(2+)、Hg~(2+)和Ag~+的十一种苦味酸盐进行了离子萃取实验，并对两类衍生物与不用金属离子的萃取能力进行了分析和比较。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。