陀螺

But, because rotorcraft has complex aerodynamic, mechanism and gyroscopic dynamic make researcher stop forward.

但是由於旋翼机复杂的空气动力与陀螺运动，使得很多研究者因此而却步。

Based on the theory and experiments, the paper builds up the simplified mathematical model of the servo control system, deduces the system control rigidity expression, and points out the method to improve control rigidity. According to Routh stability criterion, the analytic stability condition is solved, which shows the conflict between the stability and control rigidity and that gyroscope is the key factor of the conflict.

论文结合理论和试验建立了光电稳定伺服控制系统的简化数学模型，推导出系统控制刚度表达式，指出提高控制刚度的方法；利用劳斯判据求解出系统稳定的解析条件式，描述了稳定性与控制刚度之间的矛盾，并指出陀螺是矛盾关键。

Our unique essential points is born in mind, length for preservation being self check an once.

所以，请不要责怪一只陀螺的狠心，就像不要责怪自己当年太过美丽。

Two containers of mercury, connected by a small-bore pipe, are mounted so as to tilt with the gyro.

两个装有水银的容器用小口径的管道连接，安装得使它们可以随着陀螺倾斜。

A centrifugal governor rang an alarm bell if gyro rpm fell too low, and support sprag wheels on either side were automatically lowered to prevent the car falling over.

1离心调速器响了一警钟，如果陀螺转速下降过低，并支持sprag轮子，任何一方被自动降低，以防止汽车下降。

Unlike the previous GWS gyro that I used in my gas helicopter, it is very stable and the center point is very accurate.

不同于以往的gws陀螺，我用我的气体直升机，这是非常稳定和中心点是很准确。

Stationary time series state space modeling method for the analysis of the transition process gyro.

将非平稳时间序列的状态空间建模方法用于陀螺过渡过程的分析。

Navigation ; gyro stationary platforms ; time series analysis ; identification ; data analysis and processing.

导航；陀螺稳定平台；时间序列分析；辨识；数据分析与处理

To build an appropriate mathematic model of the random drift of flexible gyro ,two methods are discussed,using non-stationary time series analysis and using stationary time series analysis based on wavelet discomposition.

以挠性陀螺的随机漂移为研究对象，采用非平稳时间序列分析法和基于小波分解的平稳时间序列分析法，建立相应的随机漂移模型。

When the Tippe Top is spun on a table, the top will quickly turn the stem down towards the table.

当陀螺在桌上转的时候，圆头会很快地转起来，并用杆子一头站起来。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。