它也不需要电池供电。
这意味着这个传感器甚至可以不需要电池和电线。
This means that the sensor needs not even a single wire, nor a battery that would have to be replaced.
无需更换灯泡，不需要电池，经济、耐用、环保，是绿色产品。
Never need to replace bulb, no need batteries, Economic, useful, and environment friendly. It is green product.
它不需要电池，它在生活中很常见，而且可以方便的放入口袋或钱包。
This simple little device requires no batteries, is totally customizable, and fits neatly in your pocket or purse.
这是第一次，太阳村是连接到本地电网，所以家中不需要电池来存储多余的电力。
For the first time, the solar village was connected to the local power grid, so the homes did not need batteries to store excess electricity.
这一系统将滴灌的高效性与太阳能水泵结合起来，它既不需要电池与汽油，也不需要煤油。
Linking the efficiency of drip irrigation to the reliability of a solar-powered water pump, the PVDI systems need no batteries, gas, or kerosene.
我们相信能够制造出一款由想象力创造的玩具，一款不需要电池，而且孩子们随时随地都可以玩的玩具。
We believe in making toys that are built on imagination, don't require any battery and kids can play with anywhere.
靠燃料驱动的机动系统耗费过大，而且太不可靠，伯尼研究的系统则不同，它们不需要电池、汽油或者煤油。
Unlike motorized systems powered by fuel that's too costly and unreliable, the systems Burney studies require no batteries, gas, or kerosene.
科学家们希望，随着在芯片内所运用的纳米技术不断进步，以后可以生产出不需要电池或系统供电的电子产品。
Scientists hope that as the nanotechnology used in the chip evolves, it could lead to electronics which don't require batteries or mains power.
科学家们希望，随着在芯片内所运用的纳米技术不断进步，以后可以生产出不需要电池或系统供电的电子产品。
Scientists hope that as the nanotechnologyused in the chip evolves, it could lead to electronicswhich don't require batteries or mains power.
有个电池公司的人告诉我：“你根本不需要非用50磅的镍去做电池。”
"You don't need to carry 50 pounds of nickel, " one battery company man told me.
美国海军研究办公室要求这两个研究小组提供一些不需要更换电池的水下滑行机器人设计方案。
The US Office of Naval Research has asked the two teams for ideas for gliders that will never need a battery change.
汽车的电池也是不需要用在开车的全部过程中的，只要用它能启动就够了。
The car battery doesn't need to last the entire drive, just enough to spark the ignition.
不需要新电池。
光能。不需要新电池。
这种时钟可以从柠檬酸的电解过程中获取能量，这样你就不需要用那些有害的电池了。
The clock derives its energy from electrolysis of the citric acid and this helps you leave those toxic batteries away.
美妙之处并非只在于olev是电力驱动，而是因为他在运行时就自行充电，他几乎不需要长时间的充电或者使用大容量电池以储存大量的电能。
The beauty of the OLEV isn't just that it's electric, but that, because it charges while it's operating, it rarely needs long periods to recharge or huge batteries to store large quantities of power.
并不像氢燃料电池驱动的汽车，本周本田发布的电动汽车并不需要新管路来传送能源。
Unlike cars powered by hydrogen fuel cells, of the sort launchedby Honda this week, battery cars do not need new pipes to deliver their energy.
所以，连容量体积大点的电池也许都不需要，除非你要长时间不插电得使用电脑。
So a bigger, bulkier battery may not be necessary either, unless you want to use the computer untethered for long periods.
人造叶子实际上是两边分别胶合了不同材料的催化剂的硅太阳能电池，因此不需要外部导线或者控制电路来操控。
The artificial leaf — a silicon solar cell with different catalytic materials bonded onto its two sides — needs no external wires or control circuits to operate.
电池轻盈且很薄，因而可以铺满整个无人机的机翼而不需要占用额外的空间。
And the cells are lightweight and thin, so they could spread across the wings of an UAV without taking up extra space.
凌动需要很少的电量就可以运行，不需要庞大的电池来带动，于是，它们就在世界上意想不到的方面突然出现。
Since Atoms also use little powerand don't require bulky batteries to run, they're popping up in unexpectedparts of the world.
唾液，利用口香糖是很容易收集到的，这个过程是没有任何痛苦的，况且这个测试是不需要使用一节电池或运行一台电脑。
Saliva is easy to collect using gum, the process is painless and the test doesn't require a battery or computer to run.
与硫化钠不同的是，液化钒电池不需要加热到高温。
Unlike sodium-sulfur batteries, vanadium-flow batteries don't need to be heated to high temperatures.
只要长时间留在自然光下，太阳能电池就能储备足够多的电力以供手机使用，就不需要再次充电了。
Left in natural light for long periods, the solar panel generates enough standby power to enable the phone to be used without any further charging.
此外，由于有太阳能电源以及氢能源电池组，它完全能够自给自足而不需要任何形式的地面电能补给。
Also, it's totally self-sustained, thanks to a solar energy and hydrogen fuel cell combo, and it doesn't require any kind of input from the ground.
对同样大小的电池而言，不需要添装化学品可以提供更多电能。
Not having to carry the chemicals around in the battery offers more energy for the same size battery.
主要的区别在于，燃料电池的化学能量能直接转化成电能而不需要先转化成热能。
The major difference between these two power generators is that the chemical energy of the fuel cell is converted directly to electrical power without intermediate conversion first to heat.
在也不需要在山顶上放个发电机，也不用携带发电机用的燃料或电池了。
You don't want a generator on top of a mountain, and you don't want to have to bring fuel to a generator or haul batteries.
在也不需要在山顶上放个发电机，也不用携带发电机用的燃料或电池了。
You don't want a generator on top of a mountain, and you don't want to have to bring fuel to a generator or haul batteries.
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