查询词典 derived

Objective:To study the effect of tissue derived angiotensin Ⅱ on ischemic preconditioning in rats.

目的：探讨组织源性血管紧张素Ⅱ在大鼠心肌缺血预处理中的作用。

The mathematical model of spatial trajectory of torpedo tracking and perpendicular target hit is derived, and the guidance rules combining variation of advance angle and bearing proportion are presented for the first time.

基于面向对象技术，对鱼雷跟踪和垂直命中目标空间弹道进行了仿真和分析。

Theoretically the approximate conditions of the surface wave diffraction were analyzed,and the corresponding analytic expression of angle width of diffraction patterns was derived,which explained the asymmetry distribution well.

理论上对表面波衍射的近似条件进行了分析，得出了各级衍射条纹角宽度的解析表达式，解释了衍射条纹的非对称分布。

In comparison with existing models,the derived models possess higher accuracy,are applicable to high and low elevation angles and targets located in lower atmosphere and ionosphere,have no restriction of range,do not involve the problem of apparent elevation angle rate and are convenient in practice.

与现有模型比较，所得模型精度较高，适用于高低仰角，目标可在低层大气与电离层内，没有距离限制，不涉及视在仰角变化率问题，便于实际应用。

Movement trajectories of electrons under complex field and state parameters when electrons return to the dielectric surface are obtained by simulation,such as impact energy and return time. Variation laws of electron movement with emergence angle and microwave electromagnetic parameters are also derived. The emergence angle of electron has significant effect on the movement of electron,and there is an emergence angle in which the electron has the maximum trajectory length and impact energy.

研究发现：电子出射角度对其运动状态有显著影响，电子存在运动轨迹最大的某一出射角度，该角度下电子拥有最大的撞击能量；微波电场幅值的增加将使电子撞击能量增加，返回时间减小，微波电场相位的变化使电子的撞击能量和返回时间呈周期振荡，这从本质上解释了电子数量在二次电子倍增过程中以微波频率两倍周期振荡的原因；随着微波频率的增加电子将由简单的类抛物线运动转变为复杂的振荡运动。

Variation laws of electron movement with emergence angle and microwave electromagnetic parameters are also derived. The emergence angle of electron has significant effect on the movement of electron, and there is an emergence angle in which the electron has the maximum trajectory length and impact energy, Impact energy will increase and return time will reduce as increasing the amplitude of electric field, and both parameter would oscillate with the phase of electric field, which can essentially explain that multipactoring electron number oscillates in twice the frequency with the increase of microwave frequency, electron trajectory will change from parabolic-like movement to complex oscillation.

研究发现：电子出射角度对其运动状态有显著影响，电子存在运动轨迹最大的某一出射角度，该角度下电子拥有最大的撞击能量；微波电场幅值的增加将使电子撞击能量增加，返回时间减小，微波电场相位的变化使电子的撞击能量和返回时间呈周期振荡，这从本质上解释了电子数量在二次电子倍增过程中以微波频率两倍周期振荡的原因；随着微波频率的增加电子将由简单的类抛物线运动转变为复杂的振荡运动。

Through the simulation with a computer, the optimizing parameters of incidence angle were theoretically derived and the result was discussed.

通过计算机模拟，从理论上求出了优化参数，并对结果进行了讨论。

Two coherent laser beams derived from a single source intersect at a fixed angle. The intersection volume of the two beams is positioned on the sample surface.

多普勒激光引伸计工作原理来自同一激光源的两个相同的激光束以固定的角度交叉，两个光束的交叉部分定位在试样表面，两个激光束的波阵面影响交叉部分的大小，并形成一个干涉图。

In this system, the gratings are inscribed by the UV interference fringes of 248 nm derived from a rotatable biprism, where the phase mask is used as a beam splitter, and the biprism is rotated to change the intersection angle of two beams.

在该系统中，光纤光栅是由来自可旋转双棱镜所形成的波长为248 nm的紫外干涉条纹写入的，其中，相位掩模被用作1级衍射光的分束器，通过双棱镜的旋转可改变两写入光束的交叉角。

Two coherent laser beams derived from a single source intersect at a fixed angle. The intersection volume of the two beams is positioned on the sample surface. The wavefronts of the two beams interfere in the intersection volume and form an interference pattern.

来自同一激光源的两个相同的激光束以固定的角度交叉，两个光束的交叉部分定位在试样表面，两个激光束的波阵面影响交叉部分的大小，并形成一个干涉图。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。