这个网站可以帮助你识别不明的漂移物，以及预测你所在的地方下一次可以看到国际空间站掠过的准确时间。
Web sites now exist that can help you identify unknown "drifters" and even predict the time of the next pass of the ISS visible from your location.
探讨了光生载流子在漂移、扩散和光生伏打效应三种机制下输运迁移以及空间电荷场的形成过程。
The migration of the photocarrier and the formative process of space field induced by photocarrier s drift, diffusion and photovoltaic effect were studied.
推导了硅微机械振动轮陀螺仪的动力学方程，给出了它的运动规律，分析了载体绕空间任意轴匀速旋转时干扰力矩所引起的漂移率。
This paper gives the dynamic equations of vibratory wheel silicon micromechanical gyroscope and their motion law, analyses drifts of the gyroscope, when vehicle rotates around any axis uniformly.
非平稳时间序列的状态空间建模技术被用于陀螺漂移分析。
A state space approach for the modeling of nonstationary time series is presented.
采用CCD漂移扫描技术可以显著提高地基光电望远镜系统的观测效率，改善空间目标的数据质量，但目前不适合对快速移动目标的观测。
CCD drift-scan technique can improve the survey efficiency of ground-based optoelectronic telescope system and the data precision of space targets.
在非平稳条件下，以空间泛克立格法为基础，研究了时空域中的泛克立格法(STUK)中漂移的形式与STUK无偏估计。
Based on universal kriging in spatial domain, the type of drift and the non-bias estimation (STUK) for universal kriging in temporal-spatial domain are discussed under the condition of nonstationary.
在漂移区中考虑直流空间电荷场的影响。我们发现电子运动在该区服从一振荡方程；
We find out that, in drift, region, the motion equation of electron is an oscillation one, which influences the prcbunching of electrons.
均值漂移算法是一种基于核密度梯度估计的特征空间分析算法，其实质是一种统计优化过程。
Mean shift based image segmentation algorithm is a kind of kernel density estimation based feature space analysis algorithm, and the nature of it is statistical optimization.
文章研究了掺铁铌酸锂晶体在激光辐射下的电荷输运迁移，探讨了光折变过程中光生载流子的漂移、扩散、光致电压以及空间电荷场的动态过程。
The storage dynamics in doped lithium niobate are studied. It gives that the equations of the migration of charges is due to diffusion or drift and photovoltaic effect.
在考虑载流子的空间电荷效应、扩散效应和注入电流脉宽情况下，推导了双漂移崩越二极管的渡越角表达式。
Taking the effects of space charge and carrier diffusion as well as injected current pulse width into account, an analytic expression of a transit angle of 8 mm Si DDR IMPATT diode is derived.
另外，利用几何光学方法得到了激光光束在X方向、Y方向以及空间立体角上的漂移大小。分析了引起光束漂移的原因。
The amount of the drift in X direction, Y direction and in spatial angle can be obtained through geometrical optics.
在此基础上建立面板数据插值的线性组合模型，提出空间漂移度法确定组合插值模型的加权系数。
A combination interpolation model is constructed by the results of the two models, The weights of the combination model are obtained by information entropy.
在此基础上建立面板数据插值的线性组合模型，提出空间漂移度法确定组合插值模型的加权系数。
A combination interpolation model is constructed by the results of the two models, The weights of the combination model are obtained by information entropy.
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