飞行器

The ground stage mathematical model includs aerodynamics and the counterforce from the ground.

从飞行器的力和力矩角度对直升机进行建模，该模型包括地面阶段数学模型和离地阶段数学模型。

Silica is an important structural and functional material, which is widely applied in the fields of aero craft, semiconductor, electronic telecommunication, and optical devices. However, the crystallization of cristobalite at elevated temperature has restricted its further application.

石英是一种重要的结构和功能材料，在航天飞行器、半导体、电子通讯和光学器件等领域得到重要应用，但是高温下方石英的析晶限制了它的进一步应用。

In the last part of this paper, some numeral test functions were calculated by the software to test the efficiency of the algorithms included, then a reentry vehicle with cruciform flaps were taken as examples to testify the utility of Multi-Objective Optimization Algorithm Library.

在本文的最后，先用几个数值测试函数对方法库中几个产生式算法的性能进行了验证，然后用方法库对带控制舵再入飞行器进行了气动布局和外形优化。

But high grade curtilage the person can not be such, internet is their aircraft.

但优质宅人可不是这样，互联网是他们的飞行器。

Left cylinder and then to the right. These types of systems are used in

这些类型的系统广泛使用于从割草机到飞行器的应用领域。

Manufactured by Daystar Craft, this speeder had a mid-altitude ceiling of 170 kilometers, and a top speed of 800 kilometers per hour.

这种飞行艇由昼星飞行器公司制造，飞行高度中等，最大高度170公里，最高时速800公里。

Gain-scheduling flight control law is used to determine the deflexion angles of the control surface and control the trajectory of the vehicle, and the trajectory simulation results are obtained. The results indicate that under the control system the latter is complicated, so direct acceleration is superior.

结果表明，操纵控制下的飞行器能够按照预定轨迹飞行；使用螺旋加速方式，可以延长激光加速的时间，但是这两种加速方式最后得到的速度差不多，而螺旋加速的操纵复杂，因此竖直平面内直接加速有一定的优势。

Firstly, we design a pre-compensator for vehicle's three channels with interaction, so as to the inverse transfer function can become diagonal dominance matrix.

该方法首先对相互关联的飞行器三通道进行预补偿，使开环前向通道的逆传递函数矩阵成为对角优势阵。

There I saw a diamond shaped craft and was taken on board.

在那里我看见了钻石形状的飞行器并被带到飞碟内。

The so called indirect integral operation means that Eular angles can be gotten from the direction cosine matrix which is received by the integral operation of quaternions or direction cosine.

飞行器导航中，姿态角的获取可以通过直接或间接的积分运算求得的，所谓间接获取即是指通过四元数或方向余弦的积分运算求得姿态矩阵，再从姿态矩阵中提取姿态角。

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。