杂质

The utilization of a complete set can remove the natural impurity and fault of ginned cotton to the maximum extent to realize the upgrading of the appearance form of ginned cotton and inherent quality, and to create greater value for clients

配套使用可最大限度地清除皮棉自然杂质和疵点，实现皮棉外观形态和内在质量的升级，为客户创造更大的价值。

The difficulty of route is the refinement of products. There is a lot of sodium chloride in solution. In order to refine the glycolic acid, the methods of vacuum distillation and organic solvent extraction are adopted.

水解合成后得到的是羟基乙酸的水溶液，其中含有大量的氯化钠和少量未水解的氯乙酸及其它杂质，采用减压蒸馏及有机溶剂萃取方法进行精制是比较适宜。

Methods Through the improvement method of gravimetric analysis method.

方法通过对传统重法的改进，减少铁杂质的影响。

Haloid water is the concentrated seawater, in which, the consistence of solubrlrty salt is 40-50 times of seawater, its main component is magnesium.

卤水是浓缩了的海水，其中可溶性无机盐浓度是海水的40～50倍，其主要成分是镁，以卤水为原料生产镁产品，不仅价格便宜，而且卤水含杂质少，成分均匀，易处理，容易制备高纯镁制品。

The binding energies of the hydrogenic impurity states in a cylindrical quantum wire with finite deep potential well are discussed.

三、将模型进一步改进，考虑有限深柱形量子线中类氢杂质态的性质。

Within the framework of the effective-mass approximation, hydrogenic impurity states confined in a cylindrical zinc-blende GaN/AlxGa1-xN single quantum dot are investigated by means of a variational approach.

在有效质量近似下，用变分法研究了闪锌矿GaN/AlxGa1-xN单量子点中的类氢杂质态。

The scaling rule for hydrogenic impurity binding energy and the Virial theorem value in quantum wells and wires of rectangular cross section with three different section ratios are studied through the variational method.

利用变分法计算了矩形量子线和量子阱中类氢杂质束缚能的度规法则和维里定理值。

Based on a spherical shell structure and the graded finite potential well model, shifts of bound states caused by the interface effects on the binding energy level of hydrogenic impurities in a weakly-confined spherical semiconductor quantum dot heterostructures are studied.

采用球壳结构和渐变有限深谐振子势阱模型，利用镜像电荷的方法分析了不同介电常数下，界面效应对半导体量子点异质结中类氢杂质电子束缚能级的扰动情况。

Preparation of hydrous titanium oxides by ion-exchange and separation of impurities were studied.

3液固相离子交换制备偏钛酸并高效分离杂质离子。

The kaolin in Weibei is pure,idiomorphism of kaolinite is not so good,but crystallization is in order;,while the kaolin in Fugu is also pure,only little impurity,fine grained,good crystallized,and is a kind of high quality kaolin resource.

但结晶有序；府谷高岭岩质量纯，杂质少，粒度细、结晶好，是一种优质高岭土矿。渭北高岭岩可用作&双90&、莫来石、4A沸石等的原料，广泛用于陶瓷工业、造纸工业；府谷高岭岩可用作生产纸张涂布、高级日用细瓷原料。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷