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.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.The integrated guidance autopilot model o...
生活条件改善就会有较多的活产,较少的死产.Better living conditions mean more live births and fewer stillbirths.动物在有较多的食物时, 一般繁殖得较快.When animals have more food, they generally multiply faster.狗也有较多的自由，因为允许它们在围栏外边随便走动。The dogs have greater fre...