The stability criteria and the decay time constant of the nutation damping are obtained in an analytical form, by which the degree of the attitude stability can bd evaluated.

导出解析形式的稳定性判据和章动阻尼时间常数，可用以估计卫星的稳定度。

youdao

For example, there is no reason why Form BD, the registration form brokerages must file and keep current with the SEC should not be made publicly available on-line.

FORBES: Why the SEC Is In Danger of Becoming Irrelevant ( February 28, 2006 )

Form BD contains some information that is important to investors and cannot be obtained elsewhere, such as the ownership structure of a firm.

FORBES: Why the SEC Is In Danger of Becoming Irrelevant ( February 28, 2006 )