一般

The latter employs the suspected angular acceleration model, so that the uncertain vehicle dynamic model is avoided being utilized.

基于EKF的姿态求解算法，通过假定机体角加速度模型，避免了一般基于滤波方式的姿态算法中需要复杂刚体运动方程的缺点。

In order to study the grating diffractive field's characteristics of the partially polarized and coherent beams, an analytic expression of polarization degree and angular correlation of partially ploarized and coherent beams through polarized gratings is derived based on the beam coherentce-polarization matrix approach of partially coherent beams.

为了研究部分偏振部分相干光光栅衍射场的衍射特性，利用部分偏振部分相干光的光束相干-偏振矩阵，推导出了部分偏振部分相干光通过任意偏振光栅后，衍射场的偏振度及场中衍射级次角相关的一般解析表达式。

A ship course controller is designed for Norrbin nonlinear ship mathematical model with matching uncertainty. Combining the backstepping algorithm with the nonlinear damping algorithm to design controller, the nonlinear damping is used to cancel the uncertainty. The integral item is introduced in the design to improve the performance of the controller. Now, general ships can only use the electric gyrocompass to measure the course angle, but they have no equipments to measure the angular velocity, so in this article another ship course controller of output feedback is designed for Norrbin nonlinear ship, firstly the angular velocity is estimated by the observer and then the ship course controller is designed.

本文基于含有匹配不确定项的Norrbin非线性船舶数学模型，将backstepping算法和非线性阻尼算法相结合设计船舶航向控制器，利用非线性阻尼来抵消系统的不确定项，同时为了更好地改善系统的性能，在设计过程中引入了积分项；由于目前一般船舶只有电罗经用于测量船舶的航向角，还没有测量船舶航向角速度的设备，因此，针对Norrbin非线性船舶模型设计了一种输出反馈控制器，首先利用观测器对船舶航向角速度进行估计，然后再设计船舶航向控制器。

Normally, as the stabilized system only considers the angular motion of the isolated vehicle, the design of stabilized system mainly uses the servo control method combining optics and electronics.

由于稳像系统一般都只考虑隔离载体的角运动，因此稳像系统的设计主要采用光学和电子学结合的伺服控制方法。

The problem is that it is commonly unable for inertia platform to output attitude angular velocity of moving carrier.

但一般情况下惯导平台无法输出运动载体的姿态角速度。

Higher anhydrite and hematite content and lower portlandite content would result in lower ash fusion temperature.

一般情况下，煤灰中氢氧钙石含量低，硬石膏和赤铁矿含量高的煤，灰熔融温度较低。

Synthetic anhydrite from AlF3 plants is used mainly for the construction of self-leveling floors, as an additive to cement production and in the fertilizer industry.

AlF3 工厂生产的合成石膏一般主要用于建筑自流平地面，做为水泥产品的添加剂或用于化肥工业。

The boy's massive size was likely the result of his mother, Ani, 41, having diabetes

这名男婴和一般婴儿很不一样，他的哭声非常响亮。

Questions on Anil's Ghost : this book might almost carry the same title as Card's science-fiction novel.

有关《菩萨凝视的岛屿》问题：这本书的书名就像卡德的科幻小说一般。

The person with general enough nutrition, the skin is more not easy and anile.

一般营养充足的人，皮肤较不易衰老。

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。