Stroke control mechanism for the regulation and precise control of valve opening and closing position.

行程控制机构，用以调节和准确控制阀门的启闭位置。

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The low-pressure relieving device (4) further comprises a driving piece (8) for driving the movable piece (7) to move to the opening position from the closing position.

所述低压解除装置（4）还包括用以驱动所述可动件（7）从所述第一位置运动到所述第二位置的驱动件（8）；

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Communication administrative departments also took a steadfast position on deleting infringing content and closing illegal websites and exerted an apparent effect.

通信管理部门在删除侵权内容、关闭侵权网站等方面态度坚决效果明显。

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Now, if that's their opening position or their closing position in negotiations, then we're probably not going to make much progress, because I don't think that's economically sound and I don't think that's what the American people expect, is for us to stand by and do nothing.

WHITEHOUSE: Presidential Press Conference

Simons also played his chips, taking up positions in MasterCard and competitor Visa, while closing out his position in American Express.

FORBES: Gold, Banks On The Agenda For Billionaires Soros, Paulson In Q1

At some later date--either when you feel like closing out the position or when the lender wants the shares sent back--you have to buy some shares and replace what you borrowed.

FORBES: The Bare Bears