查询词典 field-glasses

For PPM, the magnetic field distribution and the ripple rule of electron beam in periodic focusing magnetic field is studied.

分析了阴极电子初始热速度对电子注成形和电子注质量的影响以及栅控电子枪的设计问题。

Combining optimization design with CAD and automatizing completely the process of design have become a important development trend in design method field.A new-style ditcher for sluice and keeping soil humidity is a rotary, discontinuous ditcher. It mainly used in arid and semiarid area, dig pits to sluice in sloping field, meadow, fallow and wasteland.

新型蓄水保墒机具是一种旋转式间断开沟机，主要用在干旱半干旱地区，通过在坡地(＜15°)、草地、休闲地及不能及时耕种的撂荒地上开挖一些小坑来蓄积雨水，使雨水渗到地下，被作物自由吸收利用或补充地下水。

Is a directed surface. is the unit normal vector of at ,then is called the flux of the vector field across ,and is called the divergence of the vector field ,denoted by div .

是场内的一有向曲面，是在点处的单位法向量，则叫做向量场通过曲面的通量，而叫做向量场的散度，记做。

When the temperature distribution is analyzed, finite element reseaus are divided in space field and finite difference reseaus are divided in time field and then, the program is compiled.

截面温度场分析在空间域内采用有限元网格划分，在时间域内则用有限差分网格划分。

We study the field enhancements in the waveguide structures by doped semiconductor material, and analyze their electromagnetic fields for different structures under the plane wave illumination or the short pulse. We design several doped silicon slots cavity and slot chains with large field enhancement, and describe their physical mechanism.

我们研究掺杂半导体波导结构对兆赫波电磁场增益之影响，使用电磁模拟针对不同结构做探讨，并分析连续波和脉冲波之电磁场变化，设计具有强场增益之掺杂半导体的矽狭缝和矽狭缝链之结构，并探讨其物理机制。

Futhermore, the effect of Doppler broadening on laser without inversion is extented to another very important field of the interaction of the coherent field and atoms---the resonant fluorescence.

进一步地，本文把多普勒加宽对无反转激光的影响推广到光与物质相互作用的另一重要领域，共振荧光的研究中。

In addition, a model is formulated for Doppler spectral shift of the coupling field, and the characteristic of the Doppler spectrum of the composite backscattering field is analyzed in detail.

另外，本文还推导出了耦合散射场多普勒谱频移的理论公式，详细分析了复合后向散射场的Doppler 频谱特性。

Based on the theory of heat transfer, hydrodynamics and the theory of metal solidification, by using numerical analysis technology, database technology and visual technology, this paper provided a simulation and check method for the process design to simulate the fluent field and temperature field of the filling solidification and cooling, and can predict the casting quality according to these fields, thus, by this way, improved the quality of casting draft design.

该课题就是为工艺设计提供模拟和校核手段，以传热理论、流体力学及金属凝固理论等为基础，利用数值分析技术、数据库技术和可视化技术等对铸造过程进行仿真，从而模拟出在铸件充型、凝固和冷却中的流场和温度场，并根据这些物理场对铸件质量进行预报，从而提高铸件工艺设计的质量。

Some factors are introduced,including the effects of temperature on transverse effective electric field and surface roughness scattering,the dependence of the saturation drift velocity of the electron on transverse effective electric field and temperature,and an improved interface trapped charge and fixed oxide charge coulomb scattering model.

在新模型中，引入了横向有效电场和表面粗糙散射的温度依赖性，电子饱和漂移速度与横向有效电场和温度的关系，以及改进的界面陷阱电荷和固定氧化物电荷库仑散射模型等因素。

Index both the first field displayed in the combo box, list box, or drop-down list box and the bound field.

对组合框、列表框或下拉列表框以及绑定字段中显示的第一个字段编制索引。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。