The engineers are also trying to develop an on-and-off "switch" where the glow would fade when exposed to daylight.
工程师们还试图研制一种间断式“开关”，当暴露在日光下时，光照会逐渐消失。
Known as passive cooking, this on-and-off technique not only saves energy but can also help avoid overcooking vegetables such as corn on the cob.
这被称作被动烹饪，这种断点的烹饪技术不仅能够节约能源，同样可以避免像玉米棒之类的蔬菜烹煮过度。
雨断断续续地下了一整天。
Sam was flicking a flashlight on and off.
萨姆正啪啪不停地开关着手电筒。
A neon sign flashed on and off above the door.
门上方霓虹灯忽明忽暗地闪烁着。
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。
I was still working on and off as a waitress to support myself.
我仍然有时做女招待来维持生活。
"I shall sit here," he said, "on and off, for days and days."
“我要坐在这儿，”他说，“断断续续地坐上好几天。”
I believe, from what I know of him, he was a bit of a rake. We bivouacked together on and off for nearly two years.
另外以我对他的了解，这是个有点浪子气息的家伙。我们断断续续地在一起露营了近两年。
You can turn on and off access to any of these groups.
您可以打开或关闭对任何这些组的访问。
If the light flashed on and off several times, the dolphins were supposed to press the left-hand lever followed by the right-hand one.
如果灯亮了又灭了好几次，海豚就应该先按左手的杠杆，再按右手的杠杆。
The tour is a round-trip of the town and there are a total of 4 stops where passengers can get on and off the bus.
这趟旅行是一个小镇的往返旅程，总共有4站，乘客可以在那里上下车。
Cyclists jump on and off pavements and ride at speed along the pavements.
骑自行车的人在人行道上跳上跳下，并且沿着人行道高速行驶。
The movements are similar to traditional Cossack activities, for example, sword fighting and getting on and off horses.
这些动作与传统的哥萨克活动类似，如击剑和马术。
The new buses are air-conditioned, comfortable and easy for elderly and disabled passengers to get on and off.
新的公共汽车装有空调，也很舒适，方便老人和残疾乘客上下车。
Get a hand stamp at the gate of the zoo, and you can get on and off the mini-train unlimited times on the same day.
在动物园门口盖章即可享受迷你巴士搭乘机会，当日次数不限。
Now we have a vending machine that we can turn on and off.
现在我们有了一台可以开启和关闭的自动售货机。
Grid provides an infrastructure that you turn it on and off as needed.
可以根据需要打开和关闭网格提供的基础设施。
Instead, for most people, it switches on and off like a light switch.
相反，对于大多数人来说，它就像开关一盏灯一样。
For other firmware flashes, you can remotely power the systems on and off.
对于其他固件刷新，可以远程打开或关闭系统的电源。
Genes are not blueprints - they're more like switches that get turned on and off.
基因不是蓝图——它们更像是能够被打开和关上的开关。
You can turn tick marks on and off at the minor and micro level.
可以在微观和宏观级别打开和关闭刻度标记。
On a long train ride, people get on and off and settle for a while.
在长途火车旅途中，人们上上下下，在车上停留一段时间。
It can even be switched on and off.
它甚至可以不时的被改变。
The university gives a list of houses for rent both on and off campus.
大学给出了待租房子的列表，即有校内的也有校外的。
They are controlled by molecular triggers that switch on and off on demand.
它们由能够根据需要开启或关闭的触发分子控制。
So we can now turn our nanofluidic devices on and off.
然后我们就能控制纳留空装置的开关。
The trace can be turned on and off dynamically.
可以动态地打开和关闭跟踪。
The trace can be turned on and off dynamically.
可以动态地打开和关闭跟踪。
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