At present in the general of dc outside, according to the actual need to still can use cycle reversing current and pulse current.

目前除采用一般的直流电外，根据实际的需要还可采用周期换向电流及脉冲电流。

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Hydraulic system high reliability and excellent performance, easy maintenance, hydraulic components and seal famous at home and abroad, use cycle chosen long, safe and reliable operation.

液压系统可靠性高，性能优良，易于维护，液压元件及密封选用国内外名牌，使用周期长，运行安全可靠。

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The cyclists should use the cycle lanes and wear helmets and fluorescent jacket at night.

骑自行车的人应该使用自行车道，晚上戴头盔和穿上发荧光的夹克。

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And I wanted to do it a different way which is a little bit convoluted, but it introduces the idea of a thermodynamic cycle, and it's something that we're going to use a lot in the class.

现在我将用另一种,有些复杂的办法来推导这一关系，在这一过程中引入,我们今后会常接触到的,热力学循环的概念。

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"This is magnified by the fact that the use cycle of goods is very short--diapers a few hours and clothes a few months, " he says.

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This would have involved a chain of Stirling units that use a cycle of compression and decompression in a fluid to get to low temperatures.

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Christopher Snelling, of the Freight Transport Association backed the plans, particularly the increased use of segregated cycle lanes.

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