查询词典 impurity substance

We systematically discussed impurity species, impurity resources, and impurity recycling by way, gave several impurities influx. and analyzed the results of impurity controlling experiment (Titanium guttering and boronization) on HT-6M.

通过近紫外-可见全谱和对杂质谱线的时间行为的测量，系统分析HT-6M杂质种类和可能的来源，给出了几种常见杂质朝内通量，讨论杂质产生的机制和循环途径，分析了杂质控制实验结果。

The examples show: It is not only scientific and rational approximately, but also as referenced calculational methods of threshold quanlity of increased or emendatory chemical substance in the "Identifecation of major hazard installations "(GB18218-2000) in the future, that appliance respective of TNT equivalent method, gasoline equivalent method, methane equivalent method, methl ethyl ketone peroxide equivalent method and hydrogen sulfide equivalent method for the rhrehold quanlity in the work site and store area of volatile substance, combustible liquid substance, combustible gaseous substance, active chemical substance and poisonous substance. At the same time, Comparing with the death radius method and evaluative method of combustible, volatile, poisonous mojor hazardinstalltions, hazard grading method of hazard degree grading in the chemical factory for the major hazard installations is simplerof operation and more practical of calcutating result, and have some significance on generalizer.

实例验证表明：TNT当量法、汽油当量法、甲烷当量法和过氧化甲乙酮当量法分别对爆炸性物质、易燃液体物质、易燃气体物质和活性化学物质的临界量确定，具有一定的科学性和合理性，可作为《重大危险源辨识》(GB18218-2000)中临界量数值修订和危险物质扩充时进行临界量确定的参考计算方法，同时，化工厂危险程度的重大危险源分级法与易燃、易爆和有毒重大危险源评价法和死亡半径法相比，评估过程简单易行，分级结果符合实际，具有较强的可操作性和一定的推广意义。

After analyzing the difference of orbit electron distribution, valence electron number, atomic radius between impurity M and Cu, we clarify that the unusual low temperature property of heavy electron system CeCu〓M〓 not only come from the"size effect"of impurity, the magnetism, valence electron number of impurity also play an important role.

各杂质掺杂对CeCu〓低温性质的影响是由杂质自身性质所决定的，通过分析不同杂质的轨道电子分布、价电子数目、原子半径与Cu原子的区别，结合实验结果，证明重电子系统CeCu〓M〓的低温性质不但与杂质的尺寸效应有关，而且杂质的磁性、价电子数也起重要的作用。

ABSTRACT : Objective To establish a HPLC method for determination of impurity dicyanodiamide and impurity(1) and impurity(2) in Metformin hydrochloride and Glibenclamide Tablets.

目的建立 HPLC 方法测定复方盐酸二甲双胍格列苯脲片中已知有关物质双氰胺杂质(1)和杂质(2)的含量。

Get rid of big impurity in water, soft drink impurity fibred impurity, effective protection ultra-filtration.

去除水中大的杂质。软性杂质，纤维性杂质，有效保护超滤膜。

Descartes was a substance dualist, and argued that reality was composed of two radically different types of substance: corporeal substance, on the one hand, and mental substance, on the other hand.

笛卡尔是一个本质上的二元论者，他认为现实是由两种完全不同的实体组成的：一方面是物质的实体，另一方面是心灵的实体。

We distinguish, first , the levels of medium-substance (phonic substance, for the spoken medium, and graphic substance for the written medium), and situation (or situation-substance), both of which are , in fact, extralinguistic.

首先 ，我们要区别媒介实体(口头讲的是语音实体，书面写的是字形实体)和语境的层次。事实上，二者都是超语言的。

The donor impurity and grain boundary combustion-supporting agent containing acceptor impurity were added successively in the ceramic powder during ceramic powder preparation, both of them can also promote grain growing and semiconductive, and the combustion-supporting agent can be good to form insulation layer in oxidizing process.

采用一次性烧成技术研制了晶界层半导体陶瓷电容器，在瓷料配制过程中先后加入施主杂质和含有受主杂质的晶界助烧剂，两者在还原烧成时促使晶粒生长并半导化，助烧剂在氧化时有利于晶界绝缘层形成。

Homogeneous or heterogeneous base material is selected; an alternately superimposed barrier layer and an alternately superimposed recessed layer are grown and formed at the extension of the base material; donor impurity and acceptor impurity are doped in the interface between the barrier layer and the recessed layer and in the interface between the recessed layer and the barrier layer, and the p type group III nitride material doped at a position selecting superlattice is obtained.

选择同质或者异质的基质材料；在基质材料上外延生长形成变换叠加的垒层和阱层，在垒层与阱层的界面和阱层与垒层的界面掺入施主杂质和受主杂质，得选择超晶格位置掺杂的p型III族氮化物材料，其中，每个生长周期的步骤为：生长带隙较宽的垒层，同时掺入受主杂质；生长施主杂质或受主杂质δ掺杂层；生长非掺的带隙较窄的阱层；生长受主杂质或施主杂质δ掺杂层；在N 2 气氛下对所得的选择超晶格位置掺杂的p型III族氮化物材料退火，即得目标产物。

This thesis demonstrates the pre-polymers in a polymer-dispersed cholesteric liquid crystals can be polymerized into a polymer film, which can eliminate the aligning capability of the homogeneous alignment layer. Thereafter, the textures of the cholesteric liquid crystals in UV-cured region can be changed from reflective planar texture to the scattered focal conic one. Additionally, the clearing temperature of the liquid crystals can be reduced by doping with chiral dopant or monomers. The cause is the increase of the impurity concentration in LCs. In other words, if the monomers are polymerized, the clearing temperature of LCs in that region should increase due to the decrease of the impurity concentration. Therefore, impurities associated with doping with monomeric and chiral dopants cause the clearing temperature of LCs in cured region to differ from that in uncured region.

本文中，我们提出在高分子聚合物薄膜之胆固醇液晶(polymer-dispersed cholesteric liquid crystals，简称PDCLCs)中，利用紫外光使PDCLC中的单体聚合成薄膜，此即为光引致聚合反应，而该薄膜将原本在表面所作的配向膜覆盖且破坏其配向能力，使胆固醇液晶由原本反射的planar结构转换成散射的focal conic结构；另外，有关液晶材料的相变温度会由於掺杂手性分子或单体而降低，此因液晶材料内『杂质』浓度增加，而造成的液晶材料之不纯度增加，最终导致相变温度降低，若搭配上述光引致聚合反应，则由於光照区之单体聚合，使该区域单体占总材料之比例下降，即不纯度降低，进而使液晶材料之相变温度上升，该区域之相变温度与未照光区有所不同。

Therefore, it is imperative that you need to be prepared for the great change that is about to occur.

所以，你需要为快要出现的伟大改变准备好，这是必要的。

If u agree with our suggestion of dicker trade,we will exchange paper with u wood.

如果你方同意我们进行易货贸易的建议，我们将用纸与你们交换木材。