方位变化的英文
azimuthal variation
bearing rate
direction change
orientation variant
例句与用法
- However , the computer simulation approximate approach not only clearly indicates the changes of mechanism position , velocity and acceleration orientation by means of figures , but also obtains the closely same accuracy of the analytics without the boring calculation
计算机模拟逼近法既能以图的形式展示机构位置、速度加速度的方位变化，又能得到与解析法非常相近的求解精度，又不需推导繁琐的解析公式。 - With the increase of lateral pressure modulus , the magnitude of principal stress decreases and the direction of it is hardly changeable ; with the increase of the angle between the direction of the maximal horizontal principal stress on magnitude and the fault bearing , the magnitude of principal stress increase and its direction can hardly change ; with the increase of the elastic modulus of rocks , the magnitude of principal stress increases and the direction changes more ; with the increase of pr , the magnitude of principal stress decreases and the direction changes more ; with the increase of lateral pressure modulus , the principal stress at hance , the tress at topmost arch , bottom arch and principal stress at lateral arch decreases , with the increase of the depth of tunnel , the stress of surrounding rock also increases , and the poorer the quality of surrounding rock is , the little its principle stress is
分析得出，随着侧压力系数的增大，主应力量值减小，主应力方位难改变；随着与断层走向的夹角增大，主应力量值增大，应力方向难改变：随着岩石的弹性模量的增大，主应力量值增大，方向变化越大；随着泊松比的增大，主应力量值减小，方位变化越大。随着侧压力系数的增大，顶、底拱处的各应力值增大，拱腰处的主应力减小，剪应力增大，侧拱处的各主应力减小，同一侧压力系数的条件下围岩质量越差，各应力值也越小；随着洞室埋深的增加，围岩压力也增大，围岩质量越差，其应力值也减小。 - That is , the occasional situation where the object of interest passes directly overhead ( 90 zenith pass ) . azimuth axis must rotate nearly 180 ? instantly . therefore , the standard two - axis altitude - azimuth pedestal will be unable to remain pointed at the object through the zenith pass event
所谓天顶盲区问题是指目标过天顶时对地平式设备方位轴有一个极大的过载要求，需要方位轴瞬时调转180 (或略小于180 ) ，此时方位变化的角速度和角加速度在数学意义上是无穷大，导致目标丢失。
