查询词典 impurity

In addition, the common hydroxide coprecipitation method was improved by the introduction of spray-drying to the process, to make the powder flowable and therefore avoid the need to crush powder after oven-drying, to lower impurity level and to control agglomerate size.

另外，还改进了常用的氢氧化物共沉淀工艺，通过引入喷雾干燥的方法可避免结块现象，减少杂质引入并控制团聚体尺寸。

The appearance of finished rubber blanket cyclophos phamide the quality standard in the effective use of the area are not allowed within the impurity of diameter greater than 0.5mm, does not allow foveated hang, bubble, and so on.

橡皮布制品暗地质量尺度①在灵验搁置面积边不不准有直径大于0.5mm的杂质，不不准有小瘪坑、小气泡等。

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 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。

The effects of the external electric field on the hydrogenic impurity states in the GaAs quantum wire with a finite confining potential are studied by a variational method.

给出了杂质态结合能在不同的电场强度下随量子线半径、杂质位置的变化关系。

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。

Lots of investigators' interests, in the problem of an electron bound to a hydrogenic impurity and interacting with the longitudinal optical phonon field of an ionic crystal or a polar semiconductor, have been main- tained over years.

采用线性组合算符和么正变换方法研究强弱耦合情形下，库仑场中束缚光学极化子的基态能量、振动频率和平均声子数与温度的关系。

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。

Relation of hydrogenic impurity binding energy,effective Bohr a _ and virial theorem value and quantum dots size and studied variationally by using variational wave functions of containing two parameters.

选用含有2个变分参数的波函数，利用变分法计算了无限深球形量子点中施主杂质态的束缚能、杂质有效玻尔半径、维里定理值等随量子点尺度的变化关系。

The ground-state energy and the average number of virtual phonons around the electron of a hydrogenic impurity confined in a parabolic quantum dot are calculated using the squeezed-state variational approach,which is based on two successive canonical transformations and uses a displaced-oscillator type unitary transformation to deal with the bilinear terms,which are usually neglected.

李伟萍 内蒙古赤峰学院物理与电子信息工程系，赤峰 024000肖景林内蒙古民族大学物理与电子信息学院，通辽 028043采用基于逐次正则变换的变分方法，利用单模压缩态变换处理包含声子产生湮灭算符的双线性项，研究了抛物量子点中束缚极化子的性质。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。