With each leg of the trip there has been different dynamic when you consider that there have been people coming and going and different guides bringing a new perspective and influence to the group.

每一次行程出现了不同的动态时，不同的人来来往往，还有不同的导游，都给我们的团队带来了新的视角和影响力。

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Rotary piston pump is a volume type vacuum pump and is applied widely, but there has been no method for exactly calculating dynamic balance of rotary piston up to the present.

滑阀真空泵是一种容积式真空泵，在各工业领域广泛应用。但该泵的旋转活塞平衡长期以来无精确计算方法。

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The special dynamic there has been the public safety lobby, representing workers in a place where law enforcement and security are highly valued for good reasons.

FORBES: Arizona's Pension Change Shows That No Union Is Untouchable

With this dynamic there has, perhaps not surprisingly, been a stream of former HMO executives who have become whistleblowers.

FORBES: HMO Whistleblowers Proliferate: Are They Sincere?