查询词典 CE

Because the atomic radius of Ce was larger,adding trace amounts of the Ce to the alloy causes distortion of lattice parameter.

由于Ce原子半径大，Ce的添加可使合金点阵参数发生畸变，合金强度、硬度得到进一步提高，并有助于提高触点材料的耐磨性。

The Chondrite normalized REE pattern shows typical enrichment of LREE, with ∑REE peaking up to 318 mg kg^(-1) in central layer of the profile. Both Ce and Eu have a similar trend of variation in the profile, i.e. positive anomaly-negative anomaly-positive anomaly from bottom to top. The highest ∑REE value occurs where negative Ce and Eu anomaly and relatively higher Fe(superscript 2+)/Fe(superscript 3+) values also occur.

剖面稀土元素分布型式为轻稀土富集型，∑REE在风化壳中部达到最高值318 mg kg^(-1)，剖面上Ce和Eu均呈正异常－负异常－正异常变化趋势，∑REE最高值出现在Ce和Eu负异常和Fe(上标 2+/Fe(上标 3+)较高层位，∑REE与Fe2O3显著正相关。

It has two main reasons: First of all, CE monomer polymerization after the cross-linking density, coupled with triazines elements in the ring structure of the high degree of symmetry, resulting in more brittle after curing CE.

这主要有两方面的原因：首先，CE单体聚合后的交联密度大，加上分子中三嗪环结构高度对称，造成CE固化后较脆。

In the particular ease where a and γ are equal to 1, the developable CE-Bézier surface is a developable Bézier surface. Finally, some applications in developable surfaces design are discussed, The modeling examples illustrate that the developable CE-Bézier surfaces provide two valuable ways for the design of developable surfaces.

由新方法生成的可展曲面不仅具有灵活的局部形状可调性和更强的描述能力，而且保留了CE-Bézier曲面的特性，特别是当α、γ都取值为1时，所生成的可展曲面即为CE-Bézier可展曲面。2种可展曲面设计方法的应用实例表明，该设计方法不仅简单、有效，而且易于控制曲面形状，从而为可展曲面的设计提供了一种新途径。

Therefore, the control of EO is a key step in CE.

电渗是CE的基本现象之一，它可以控制组分的迁移速度和方向，进而影响CE的分离效率和重现性，所以电渗的控制已成为CE研究的一大关键。

We have received the CE certificate for the TCF paper is the first Gamma Knife, So CE mark only the first generation of Gamma Knife early for an add-on.

我们这次获得的CE证书因所提交的TCF文件是第一代头部伽玛刀的资料，因此CE标志只能加贴于第一代头部伽玛刀。

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Negative Ce anomaly is one of diagnostic criteria of geotectonic setting of silicalite. Silicalite in Golug, Xinrenlang and Lhazê in the Gangdisê tectonic belt is characterized by unclear negative Ce anomaly characteristic of epicontinental or neritic sediment, while silicalite in Gyüzê La-Jiaqing area is characterized by weak negative Ce anomaly characteristic of sediment in transitional belt between oceanic basin and continental margin.

硅质岩Ce异常特征是构造背景判别的最有效的手段之一，冈底斯构造带谷露、新认朗与拉孜地区的硅质岩Ce负异常不明显，属大陆边缘或浅海环境，而九子拉家青地区的硅质岩具弱的Ce负异常，属大洋盆地与大陆边缘之间的过渡环境中的沉积。

Comparing Ce /Ce with Mn/Mn oxidative medias, we learned that:①A better results could be achieved using Ce than using Mn as oxidant to prepare benzaldehyde and tolualdehyde from toluene or xylene with the product\'s yield 10%～15% higher;②Mechanisms of the two electrooxidation reaction were different from each other.

二者的电解氧化反应机理有所不同，Ce由Ce直接电氧化得到，而Mn则是由Mn间接电氧化获得，且前者电解氧化所需的硫酸浓度仅为后者的十分之一。

The result s show that the cerium compounds consist of Ce 3/ Ce 4 and Ce 2O 3/ CeO 2 , exist in the form of particles and are excellently dist ributed on the zinc powder subst rate. The capacity-loss of the zinc elect rodes is evidently suppressed while the discharge capacity and cycle life can be markedly improved due to the application of the zinc-based composite powder as negative materials of the silver-zinc bat tery. Especially , discharge capacity of 231. 4 mAh g-1 is still achieved at the 50th cycle for the zinc elect rode using the composite powder .

结果表明：由 Ce 3/ Ce 4和 Ce 2O 3/ CeO 2组成的铈化合物以颗粒形式良好地分散在锌粉基体上，用这种锌基复合粉作为模拟锌银电池的负极材料，其锌电极的容量衰减得到明显抑制，放电容量和循环寿命得到显著提高，尤其是其锌电极在 50周期的放电容量仍可达到 231。

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。