The man is off his rocker.

这个人是精神错乱了。

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This structure improves the support rigidity of the rocker shaft and the dynamic characteristics of the valve drive system, and reduces the number of components and the number of working man-hours.

这样的结构改善了摇臂轴的支撑刚度以及阀驱动系统的动力性能，并且减少了零件的数量和人工的工时数量。

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He tends to come off as an out-of-control rocker just speaking his mind whether the man likes it or not.

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In the interests of simplifying the man-machine interface, the Lexus unit combines four buttons, one rocker switch and one compass controller, which is as delicate as a Norden bomb sight.

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