Two control ring work together to realize variable speed constant frequency.

运行时机组的两个控制环同时工作，实现变速恒频。

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Lay a solid foundation for researching stiffness and strength of control ring for horizontal shaft turbine.

为今后研究卧式机组的控制环的刚强度打下了基础。具有一定的理论及实际价值。

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The piston rings carried in the ring groove are of two basic types: compression rings and oil-control ring.

安装在环槽中的活塞环有两种类型：压缩环和机油环。

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Just as with the XZ-2, a function can be selected for each shooting mode and assigned to the control ring.

ENGADGET: Olympus unveils Stylus XZ-10 with f/1.8-2.7 zoom, smartphone sharing app

The control ring and Touch AF Shutter made popular on the XZ-2 are still available on the XZ-10, providing spectacular performance and the ability to capture every photo opportunity.

ENGADGET: Olympus unveils Stylus XZ-10 with f/1.8-2.7 zoom, smartphone sharing app

Users can easily call up or switch between functions assigned to the Fn (Function) button and control ring and change setting values as needed, allowing them to quickly set up their preferred style.

ENGADGET: Olympus unveils Stylus XZ-10 with f/1.8-2.7 zoom, smartphone sharing app