Device can be used both in the vertical position and in the horizontal.

装置可用于在垂直位置，并在横向。

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NOTE: Twin Disc Check Valves can be installed horizontally or in the vertical position with flow up.

注意：双阀瓣止回阀能够安装在水平或流向朝上的垂直位置。

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Fixes the AF point display for the viewfinder electronic level when shooting in the vertical position.

修正了竖直拍摄时自动对焦点在取景器中的显示问题；

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To complicate things, it also had to work in the vertical position, which is how letters travel in automated sorters.

ECONOMIST: Monitor

And it will only clean windows in the vertical position.

WSJ: Urban Gardner: The Joy of Clear Glass

The holder start in a locked vertical position, and to attach a lens you just bayonet it into place, securing the glass and allowing the holder to be lowered.

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