switch on

• It is inconceivable that so strong a source of energy can be switched on and off in as little time as 1/30 second .
  真难以想象如此强的能源可在130秒这样短的时间内关闭和开启。
• The block becomes magnetic when the current is switched on
  通电时线圈即具磁性
• Switch on motor and engine will operate properly
  接通启动电机，发动机正常工作。
• Switch on the radio to listen to any broadcast message
  开启收音机收听广播信息。
• All right , switching on electron spin - burst transmitters
  好，转换到电子旋转传输
• He switched on the light and plumped up the cushions
  他打开了灯，拍松了靠垫。
• The video is programmed to switch on at ten o ' clock
  电视机设定在10点钟自动打开。
• The loop becomes magnetic when the current is switched on
  通电时线圈就会有磁性。
• This flag is switched on only for the current connection
  仅为当前连接打开此标记。
• The following example switches on trace flags
  以下示例以全局方式打开跟踪标记