The shaver will run off batteries or mains.
这个剃须刀可用电池或电源驱动。
The batteries had a life span of six hours.
电池的使用寿命是6小时。
The batteries are designed to be leak-proof and hermetically sealed.
这些电池的设计防渗漏，且密封性强。
Some kinds of batteries can be recharged by connecting them to a source of direct current.
有些型号的电池在接入直流电源时就能充电。
If they succeed, batteries will not be needed.
如果他们成功了，那么就不再需要电池。
They did not become popular until the emergence of improved batteries.
直到电池有所改善，它们才变得流行起来。
Phones run on batteries, and batteries can die faster than we realize.
手机是靠电池运行的，而电池耗尽的速度比我们意识到的更快。
In 2004, the price of batteries used on ebikes fell, spurring European sales.
2004年，电动自行车使用的电池价格下跌，刺激了在欧洲地区的销售。
Scientists and engineers have long believed in the promise of batteries to change the world.
长期以来，科学家和工程师们都相信电池能够改变世界。
You should use the test button each month to see if the alarm and batteries are still working.
你应该每月使用测试按钮，看看闹钟和电池是否还在运转。
Newly designed giant gravel batteries could be the solution to the on-off nature of wind turbines and solar panels.
新设计的巨型砾石电池可以解决风力涡轮机和太阳能电池板的开关问题。
Old batteries can't be discarded casually even when they are no longer useful, because they'll pollute the environment.
旧电池即使没用了也不能随意丢弃，因为它们会污染环境。
These act like batteries when they undergo a temperature change: attach electrodes to them and they generate a current.
它们经历温度变化时会像电池一样工作：给它们接上电极，它们就会产生电流。
The UT team put special sticks inside the soil to capture the energy and keep it in the lamp's batteries for later use.
UT团队在土壤中放置了特殊的棍子来获取能量，并将其保存在灯的电池中以供以后使用。
A boost in the storage capacity of batteries is making their ability to keep power flowing around the clock more likely.
电池存储容量的大幅提升使其更有可能保持全天候供电。
But a boost in the storage capacity of batteries is making their ability to keep power flowing around the clock more likely.
但是，电池存储容量的大幅提升使其更有可能保持全天候供电。
Instead, some in Africa and Asia are seeing their first lightbulbs illuminated by the power of sunlight stored in batteries.
相反，非洲和亚洲的一些人见证了他们的灯泡首次被储存在电池里的太阳能所点亮。
For better or worse, batteries make possible our mobile-first lifestyles, our screen culture, our increasingly globalized world.
无论是好是坏，电池使我们以便携式为先的生活方式、屏幕文化以及日益全球化的世界变得更为可能。
Although e-bikes first appeared in the 90s, cheaper options and longer-lasting batteries are breathing new life into the concept.
虽然电动自行车最早出现在上世纪90年代，但更便宜的选择和更持久的电池正在给这一概念注入新的活力。
The industry is benefiting from improved batteries as suppliers over the years developed technology for laptops, smartphones and electric cars.
随着供应商多年来为笔记本电脑、智能手机和电动汽车开发技术，该产业因电池的改善受益匪浅。
His proposal is to start by using solar systems with associated batteries to do much of the work that diesel generators do in post-calamity situations.
他建议在后灾害状况下，首先用附加电池的太阳能系统去承担本应由柴油发电机完成的许多工作。
His inventions and innovations included batteries, cement mixer, the sound recording telephone, double- and multi-type cable system, railways used brakes.
他的发明和革新包括蓄电池、水泥搅拌机、录音电话、双工式和多工式电报系统、铁路用制动器等。
Even utility companies, which have long viewed batteries and alternative forms of energy as a threat, are learning to embrace the technologies as enabling rather than disrupting.
就连长期以来将电池和替代能源视为威胁的公用事业公司，也开始学着接受这种技术，认为它们是有利的，而不是破坏性的。
Every time she consulted her watch, she wondered if the batteries were wearing out.
每次看手表的时候，她都会想是不是电池没电了。
We can't throw used batteries away.
我们不能扔掉用过的电池。
Instead, strong batteries run their electric engines.
相反，强劲的电池对电动引擎起驱动作用。
Harmful waste includes things like medicine and batteries.
有害垃圾包括药品和电池等东西。
The problem is that car batteries need to be recharged.
问题是汽车的电池需要充电。
Another problem is finding a place to recharge the batteries.
另一个问题是找地方给电池充电。
They go to class while the batteries are being charged.
他们上课的时候电池正在充电。
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