The theory is that the male strategy is the most useful for hunting prey; chasing an antelope, say, would mean running a long way over a winding route.

这一理论认为，男性的策略在狩猎时最为有效；换句话说，追捕一只羚羊将意味着要沿着千回百转的路线长途跋涉。

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In the split-phase motor, the startup winding is designed with a higher resistance than the running winding.

在分相式电机里，设计启动绕组的电阻要比运行绕组的电阻大。

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Flyer and winding sections can adopt bevel gear transmission. The gears are precisely processed, the running speed is high and the noise is low.

锭翼、卷绕部分可采用斜齿轮传动，齿轮均经过锑齿加工，运转速度高，噪音底。

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But running time can be extended by repeatedly winding up the spring and transferring its energy into the battery.

ECONOMIST: MONITOR