双膝弯曲着跳，这样会缓解冲击力。

Jump with your knees bent, so they absorb less impact.

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考虑了常利力下双复合泊松风险模型。

The double compound Poisson risk model under constant interest force is considered.

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对双活动锁定装置所需要的力没有要求。

There are no force requirements for double action locking devices.

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对双活动锁定装置所需要的力没有要求。

There are no force requirements for double action locking devices.

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