The spring driven gyroscope is driven by the potential energy stored in a leaf power spring to rotate with a high speed.

弹性驱动陀螺仪是利用发条弹簧所储存的弹簧势能驱动陀螺仪转子高速旋转的陀螺仪。

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He arrived in Washington in the spring of 1842 with the power to settle all disputes with the United States.

VOA: special.2009.02.05

Two years later, magistrates in Milan said they were investigating whether Berlusconi paid for sex with an underage prostitute named Ruby the Heartbreaker, then used his power to spring her from jail in an unrelated incident in which she was picked up for theft.

CNN: Berlusconi gets 1-year sentence over published wiretap

But before a new generation of nuclear power plants can spring into being, Mr Davey must also sign the second.

BBC: What price nuclear power? The final hurdle for Hinkley

His words had a special resonance, because one Italian politician has just floated the idea of a broad coalition to keep Mr Monti in power after next spring's election.

ECONOMIST: Who might succeed Mario Monti?