对轴

By the method of sand culture, this paper studied the effects of different concentration chromium 0, 100, 200, 300, 400, 500, 600, 800 mgL^(-1 on the matured hypocotyl germination and seedling growth of Avicennia marina on 25, 45 and 150 days of treatment.

采用砂基栽培，研究重金属铬不同胁迫强度0、100、200、300、400、500、600、800mgL^(-1和胁迫时间（25、45和150d）条件下，对红树植物白骨壤成熟胚轴萌发及幼苗生长的影响。

The measurement is simulated by ""regular icosahedron "" method, utilizing the direct current moment electric motor and the photoelectrical axis angle encoder, the rotation of the shot carrier and the CCD camera is completed, and can orientation the rotating angle, so that the system can make the CCD camera to measure the square diagraph in 16 independent projections.

该系统的研制是利用"正二十面体"方法进行模拟，直流力矩电动机和光电轴角编码器配合使用，完成载物台和CCD相机的旋转运动和角度定位，使CCD相机能够实现对十六个独立方向上的投影测量。

Because it can pull the loci, or parts thereof, away from the imaginary axis,deeper into the left-half plane.

对根轨迹或部分根轨迹有拉的作用，使根轨迹远离虚轴，向更左的左半平面移动。

A zero can improve relative stability because it can pull the loci, or parts thereof, away from the imaginary axis, deeper into the left-half plane.

零点可以提高系统的相关稳定性，因为零点对根轨迹或部分根轨迹有拉的作用，使根轨迹远离虚轴，向更左的左半平面移动。

In chapter six, an integrated CAD/CAM system for impeller parts is introduced.

第五章对多轴NC加工CAD/CAM单元技术作了系统研究。

An iterative method is developed to calculate the coordinates of the intersection point of an incident ray with a B-spline surface in 3D space.

探讨了用阻尼最小二乘法对B样条曲面反射器进行优化设计的方法，通过优化运算修正控制顶点Z轴坐标，使得曲面在使用扩展光源时光形分布尽可能满足设计要求。

Numerical simulations show that the results are accordant with conservation of energy; electrical field or magnetic field of the ray refracted to the isotropic medium does not parallel to the electric field or the magnetic field of original incident ray; the direction of optical axis and the magnitude of incident angle have a great effect on the energy and the polarization direction of the refracted ray.

数值模拟表明，所得结果满足能量守恒；射入各向同性介质中光的电场与原入射光的电场不再平行；光轴的取向和入射角的大小对折射光的偏振方向和能量有重大影响。

Materials and Methods: Thyroid functional imaging and the measurement of the level of thyroid incretion was carried out in 103 cases suspected clinically as thyroiditis.

材料与方法对 10 3例临床怀疑为甲状腺炎的患者进行99mTc甲状腺功能显像和甲状腺轴激素水平变化的测定。

By statistics and analysis of fold axis、lines and conjugate joints in structures of every stages, the paleotectonic stress fields in Indo-chinese stage, Yanshan stage and Himalayan stage were resumed.

通过对各期构造的褶皱轴迹和共轭节理的统计分析，恢复了印支期、燕山期、喜山期构造的古应力场。

Based on general discussion over all available fault-tolerant control methods, we chose linear matrix inequation to do research on robust fault-tolerant control. The result could apply to the control problem of three-axis stabilized directional satellite control system.

在对现有各种容错控制方法进行了综述的基础上，选择线性矩阵不等式方法进行鲁棒容错控制方法研究，得到的结果适用于三轴稳定定向卫星控制系统的容错控制。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐