In this paper, the transverse vibration and stability of an axially moving rectangular membrane, subjected to two direction pull forces, are analyzed.

本文研究了双向受拉力作用下的轴向运动矩形薄膜的横向振动和稳定性问题。

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A majority would like to see all British forces withdrawn by the end of the year while 42 percent favor an immediate pull-out.

VOA: standard.2009.07.13

It is thus worth noting that there is no cost-push inflation to work against or counter the reduction of demand-pull forces that would intensify inflation.

FORBES: Why Inflation Worries Are Overblown

If it becomes clear that that is no longer an imminent threat, will the President pull American forces out?

WHITEHOUSE: Press Briefing

The Syrian government and the opposition agreed to pull their forces from cities by Tuesday as part of an agreement brokered by Kofi Annan, the former U.N. secretary-general who now serves as the U.N. and Arab League special envoy on the Syrian crisis.

CNN: Opposition: 127 dead as Syrian forces target civilians