您要查找的是不是：
- In order to turn off thyristor unfailingly, the inverter circuit should be rebuilt. 为了保证可控硅可靠关断，需要改造逆变电路主回路。
- gate turn off thyristor gate drive circuit 可关断晶闸管门极驱动电路
- Quick, turn off the gas;the milk will boil over. 快把煤气关掉，牛奶要溢了。
- Please turn off the electric power. 请把电源关掉。
- Do you mind if I turn off the light? 我把灯关掉你不反对吗?
- Turn off the lights when you leave. 离开时把灯熄掉。
- turn off thyristor 可关断可控硅元件
- He turned off the dash light and drove on. 他关掉仪表板上的灯，继续驱车前进。
- Turn off the switch when anything goes wrong with the machine. 如果机器出故障，就把开关关掉。
- Have you turned off the water valve? 你关掉水阀了吗？
- If a water-pipe bursts turn off the stopcock immediately. 水管破裂时要立即关紧旋塞。
- Is this where we turn off the road for Dalian? 这就是我们要转往大连的路吗？
- Will you please turn off the light when you leave? 你离开时请关灯好吗？
- He turned off the light before going out. 他出门前把灯关掉。
- The porter turned off the vacuum. 清洁工关掉真空吸尘器。
- We turned off the motorway at Lancaster. 我们在兰开斯特转弯离开了高速公路。
- Its main return circuit adopts thyristor contactless switch,so can turn off circuit quickly,precisely and reliably. 该系列点焊机主回路均采用晶闸管无触点开关，电路关断时间快、准确、可靠。
- We turn off the mina road a few miles back. 我们离开大道好几英里了。
- He turned off the light and the room was in complete darkness. 他关上了灯，室内一片漆黑。
- She had enough sense to turn off the gas. 她知道关掉煤气。
