| 1. | His mood inclined to melancholy and retrospection .
他不禁感慨系之，俯仰今昔起来。 |
| 2. | Independent pitch and yaw of the two birds produce noise .
两只吊舱的独立俯仰和偏航均会产生噪声。 |
| 3. | A variable pitching moment is provided by moving the elevator .
俯仰力矩的变化由升降舵的偏转来提供。 |
| 4. | The s-ivb stage has its single engine gimbaled in pitch and yaw .
S-IVB级有一个单独摆动发动机来作俯仰和偏航。 |
| 5. | Pitch-yaw coupling can be neglected only for nearly axisymmetric vehicles .
只有对接近于轴对称的飞行器，俯仰与偏航的耦合才能略去。 |
| 6. | The roll erection system now comes into play and provides an ever-increasing torque about the pitch axis .
侧摆修正系统开始工作，并绕俯仰轴提供一不断增加的力矩。 |
| 7. | When a position gyro is used in the pitch plane the missile is usually launched at a set elevation .
当位置陀螺用在俯仰平面上的时候，导弹通常以一个设定的仰角发射。 |
| 8. | The system input in this case is turbulent air which produces random pitching motion of the vehicle .
在此情况下，系统的输入是紊流大气，它使飞行器产生随机俯仰运动。 |
| 9. | Identical autopilots are used to control the pitch and yaw motions if the missile has two planes of symmetry .
如果导弹有两个对称面，则使用相同的自动驾驶仪控制俯仰和偏航运动。 |
| 10. | So-called "gimbaling errors" can result from improper gimbal geometry or from imperfect roll and pitch stabilization of the gimbal system .
所谓“框架误差”是框架几何形状的不正确或框架系统的侧摆和俯仰稳定得不完善所产生的。 |
