Viper Strike is a gliding munition capable of precision attack from extended ranges using GPS-aided navigation and a semi-active laser seeker.

Viper Strike 是一种滑行军需品，能够使用 GPS 辅助导航和半主动激光导引头从更远的范围进行精确攻击。

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Magnetorheological fluid (MRF) damper is a new kind of smart damper and an ideal device for semi-active vibration control.

磁流变液耗能器是新一代智能型耗能器，是实现半主动振动控制的理想元件。

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Simulation analysis results showed that semi-active control with MR smart damper was beneficial to suppressing the vibration responses.

计算结果表明，采用MR智能阻尼器能有效的抑制闸门的振动反应。

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So these managers eschew the passive approach to tracking an index in favor of a semi-active approach to portfolio management.

FORBES: Enhanced Index Funds: Can They Deliver Low-Risk Returns?

There is prize money at stake for the Caribbean island's 150 active players, but Road Tennis remains semi-professional.

CNN: On the road: Barbados' twist on tennis