查询词典 direction constant

The 0°K relaxed structures of grain boundaries in Cu and its alloys (Cu-Ag, Cu-Bi) were simulated with molecular dynamics method by using a five-parameter potential and constant volume assumption.In these cases, the results showed that the atomic distribution was periodic in the two directions paralled to the grain boundary and it was mirror-symmetric in the direction perpendicular to the boundary.

本文采用五参数对势和固定体积的假定，应用分子动力学方法模拟了零温下纯Cu、Cu-Ag和Cu-Bi合金的晶界弛豫结构，计算结果表明，在上述情况下，原子分布在平行晶界面的两个方向是周期性的，在垂直晶界面的方向是镜面对称的。

Problems with photoreception or the nerves that relay images to the brain cause a constant degree of deviation; defects in the nerves that control the muscle s that move the eyes cause deviation that varies with the direction of gaze.

常由神经调节的某种异常所致，这种异常可发生于视网膜对图像的光接收，亦可发生在通向脑高级中枢的传导通路上或调节眼肌的运动神经上。

Problems with photoreception or the nerve s that relay images to the brain cause a constant degree of deviation; defects in the nerve s that control the muscles that move the eyes cause deviation that varies with the direction of gaze.

常由神经调节的某种异常所致，这种异常可发生于视网膜对图像的光接收，亦可发生在通向脑高级中枢的传导通路上或调节眼肌的运动神经上。

Problems with photoreception or the nerves that relay images to the brain cause a constant degree of deviation; defects in the nerves that control the muscles that move the eyes cause deviation that varies with the direction of gaze.

常由神经调节的某种异常所致，这种异常可发生于视网膜对图像的光接收，亦可发生在通向脑高级中枢的传导通路上或调节眼肌的运动神经上。

Problems with photoreception or the nerves that relay images to the brain cause a constant degree of deviation; defect s in the nerves that control the muscles that move the eyes cause deviation that varies with the direction of gaze.

常由神经调节的某种异常所致，这种异常可发生于视网膜对图像的光接收，亦可发生在通向脑高级中枢的传导通路上或调节眼肌的运动神经上。

According to the uncertainty principle, the mathematical product of the combined uncertainties of simultaneous measurements of position and momentum in a given direction cannot be less than Planck's constant h divided by 4π.

根据不确定性原理，同时测量位置和给定方向的动量时，合成不确定度之积，不能小于普朗克常数除以4π。

1 Pan Pearl River Delta Physics Olympiad 2009 2009 年泛珠三角及中华名校物理竞赛 Q2 Spin Torque (16 points)题 2 自旋力矩(16 分) An electron has permanent angular momentum called spin that is fixed in amplitude h / 4π, where h is the Planck Constant, while its direction can be changed by external interactions.

电子具有固有的角动量 S ，叫做自旋，其方向可在与外界的相互作用下改变，其大小为固定的 h / 4π，其中 h 为普朗克常数。一导线载有电流 I，导线的下半部分由磁化了的导体组成，上半部分由非磁性导体组成。

Motion synchronization between tool in X direction and principal axis rotation was controlled by electronic gearbox in cam turning. And profiling mechanism could be superseded by servo tool-holder. Linear motor direct drive servo tool-holder was designed, and host-slave control system with PC and DSP was developed for the require of high-speed and realtime servo. The technical process was analyzed in cam turning. Servo tool holder with tool swinging and principal axis variable rotate speed were presented to keep constant cutting angle and speed.

将电子齿轮箱用于凸轮车削加工系统的传动，以伺服刀架取代了传统加工的靠模装置，实现了刀具X方向直线运动与机床主轴转动的同步控制；设计了直线电机直接驱动的伺服刀架及基于PC与DSP构成的上—下位机控制结构，采用DSP进行实时控制以满足高速伺服需要；对凸轮加工过程的工艺特点与恒角度、恒速度车削进行研究，提出了具有刀具摆动功能的伺服刀架与机床主轴变转速运动方案。

The constant phase velocities in the direction of the corresponding plane-wave vectors for isotropic media result in three spherical slowness surfaces for each fiber orientation.

这些慢度曲面与各向同性材料中相应平面波矢的相速度为常数的情况不同，对任一纤维方向，都有三个球形的慢度表面。

On the assumption that the unevenness of runway profiles along the direction of taxi - ing is a stationary random function,techniques of piecewise constant-speed taxi ing runs and piecewise linear representation of dynamic properties of airplane landing gears are adopted in this paper to approximately simplify the actual nonlinear and nonstationary random vibration prob-lems to the piecewise linear and stationary ones.

在飞机滑行方向跑道路面不平度为平稳随机函数的假设下，采用滑行过程分段等速化、起落架动态特性分段线性化方法，把原非线性非平稳随机振动问题，简化为分段线性平稳随机振动问题。

I want to be a big fish in a small pond.

我要做一条在小池塘里的大鱼。

While the software functioned well, we did not feel the same about their customer support!

虽然该软件运行良好，我们没有同样的感觉他们的客户支持！