off-and-on

Summer is a time to relax, regroup and catch up on all those things you've been putting off all year.

夏天是休养整顿、并处理一年中积压事务的时候。

This occurs in an off-and-on cycle.

他的发生与“开-关”机制有关。

The rugby tour was a disaster both on and off the pitch.

这次橄榄球巡回赛在场上、场下都彻底失败。

He flung off his coat and collapsed on the sofa.

他随手脱掉大衣，倒在沙发上。

This paper intends to analyze the waveforms and magnitude of thyristor voltage of general phase-controlled converters and present an equivalent circuit by which we can analyze and calculate the thyristor voltage with off-and-on current.

本文对常用相控变流器晶闸管上的电压波形及大小进行了分析，提出了电流断续的情况下，分析、计算晶闸管上电压的等值电路和方法。

He jumped on his bike and pedalled off.

他跳上自行车就骑走了。

He was anxious about an off-and-on pain in the abdomen.

他因时隐时现的腹痛而焦虑。

She got on her bike and rode off.

她骑上自行车走了。

An off-and-on member of the Italian squad for over 10 years, this will be 31-year-old Cassano's first World Cup after joining Parma and having his best season in some time.

31岁的卡萨诺过去十年在意大利国家队起起落落，将在加入帕尔马经历了最好的赛季后第一次参加世界杯。

Wireless camera-capsule must be miniature and low power consumption and power supply by off-and-on mode;

无线电摄像胶囊微型化和低能耗的要求和采取的断续供电方式；