杂质

METHOD: tetracaine was isolated from plasma and cerebrospinal fluid impurity by RP-HPLC.

用RP-HPLC法将地卡因同人血浆和和脑脊液中的杂质分离。

The results show that the average crystal size of terephthalic acid increases obviously during the aging process,but the changing of water content has not obvious influence on the aging process.

研究了高温下含水量对粗对苯二甲酸晶体粒度和固液两相中杂质浓度的影响，结果表明：熟化能增加对苯二甲酸晶体的平均粒径，但含水量变化对熟化过程影响不明显。

The effect of with or without grain boundary is larger to specific resistance, but the effect of quantity of grain boundaries is much smaller.

晶界对电阻率的影响，可能与晶界上大量存在的空位、位错及杂质对电子散射的综合效应有关。

Under the same condition, the concentration of Mn tends to increase, but there are not obvious disciplinarians for Ni impurity.

借助于X射线荧光光谱仪我们分析了含硫金刚石中的杂质元素与原料中添加剂硫的关系。

The paper introduces the experiment on small type and serial separation of drycleaned concentrate from Mongolia .

介绍了蒙古国干选粗精矿的小型选矿试验和连续选矿试验，试验结果表明：蒙古国干选粗精矿是可选性较好的单一磁铁矿石，采用简单的弱磁选工艺，即可获得铁品位高、杂质低的优质铁精矿。

Since the float-zone silicon has lower contaminations and longer minority carrier lifetime than those in Czochralski Silicon and other semiconductor material, it has potential advantages to fabricate phototransistor on high-purity FZ silicon substrate to achieve a high gain at ultra low signal levels.

区熔单晶硅与直拉单晶硅以及其他半导体材料相比杂质含量少，少子寿命长，所以以区熔单晶硅为衬底制作的光晶体管在弱的光信号下仍然有高的增益，适宜于弱光探测。

When incrementing the value through time, the noise of the particle changes too.

当价值随着时间的增长，粒子的杂质也将改变。

Individual indentations of small foreign particles are inevita-ble.

小杂质的单个凹痕是难免的。

The sample was diluted by water containing a little amount of sodium chloride, and then extracted by hexane, purified by oil of vitriol to decrease impurity. The extracted solution was analyzed by GC-ECD and quantified by external standard method.

试样加水稀释，加入少量氯化钠，再用正己烷提取，浓硫酸净化样品，排除干扰杂质，以GC-ECD测定，外标法定量，六六六和滴滴涕在0.005~0.2μgmL^(-1)范围内，质量浓度与峰面积呈良好的线性关系。

Leakage in the initial observation to determine the basis of the leakage site, and then manually set car observation, if the leakage were no significant changes in static and dynamic sealing ring problem; such as the disk when there are significant changes in leakage can be concluded that the dynamic , static friction ring problems; such as leakage of medium along the jet axis, w你好le moving most of Central ring problems, leakage to the surrounding medium or from the water spray cooling holes in the leakage, the seal ring for static failure.

杂质泵安装静试时泄漏机械弥缝安装调试好后，一般要进行静试，察看泄漏量如泄漏量较小，多为动环或静环弥缝圈存在问题；泄漏量较大时，则表白动、静环磨擦副间存在问题在开端察看泄漏量、判断泄漏部位的根蒂根基上，再手动盘车察看，若泄漏量无明显变化则静、动环弥缝圈有问题；如盘车时泄漏量有明显变化则可下定论是动、静环磨擦副存在问题；如泄漏介质沿轴向喷洒，则动环弥缝圈存在问题居多，泄漏介质向四周喷洒或从水冷却孔中漏出，则多为静环弥缝圈失效此外，泄漏通道也可同时存在，但一般有主次区分，只要察看细致，认识结构，一定能正确判断

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐