电池

假定我们在干电池两端接上伏特计。

Suppose we connect a volt meter across a dry cell .

电池电势的测量和控制是实验电化学的重要概念之一。

The measurement and control of cell potentials is one of the most important aspects of experimental electrochemistry .

电池使用前必须充电。

Before use , the battery must be charged .

太阳能电池板只能在日光下起作用。

Solar panels can only operate in sunlight .

太阳能电池板吸收太阳能。

Solar panels trap energy from the sun .

电池没电了。

The battery is flat .

我看电池好像该换了。

I thought it looked as though the battery was going .

这种光盘自动清洗机可用电池或电源两种方式驱动。

The Auto Compact Disc Cleaner can run off batteries or mains .

我的汽车电池报废了。

The battery in my car gave up the ghost .

电池被安全地置于一个防水的隔间里。

The batteries are safely enclosed in a watertight compartment .

内德打开开关亮起了装电池的灯笼。

Ned turned on the lanterns , which worked with batteries

我的车库里有台电池测试仪。

I have a battery tester in my garage .

他们告诉我需要换新电池。

They told me I needed a new battery .

别忘了带上几节备用电池。

Don 't forget to take a few spare batteries

这种电池充电器是摄影工作者的好帮手。

This battery booster is a boon for photographers .

言外之意是，这种电池的寿命是其他品牌电池的两倍。

The implication is that this battery lasts twice as long as other batteries

这些电池的寿命为6小时。

The batteries had a life span of six hours

亚力克斯忘了给电池充电。

Alex had forgotten to charge the battery .

每次她看手表，都会怀疑是不是电池没电了。

Every time she consulted her watch , she wondered if the batteries were wearing out

它是由电源或者电池供电的。

It is mains or battery powered .

这些剃须刀都已经配好了电池。

The shavers come complete with batteries .

这些电池快没电了。

The batteries are running down .

电池充电系统和半个世纪前基本上没什么区别。

Battery charging systems remain basically the same as those in use half a century ago .

一些型号的电池可以连接到直流电源上进行充电。

Some kinds of batteries can be recharged by connecting them to a source of direct current .

他的汽车报警器连着响了两天，结果电池耗没电了。

His car alarm had been going off for two days and , as a result , the battery was flat .

据说“飞轮”电池充电一次就能驱动电动汽车行驶600英里。

The ' flywheel ' battery , it is said , could power an electric car for 600 miles on a single charge

他反复试着发动车子，但电池的电越来越少，最后根本就打不着火了。

He kept trying to start the car and the battery got flatter and flatter , until it wouldn 't turn the engine at all

测试显示这种新电池续航时间更长。

Tests showed that the new battery lasted longer .

在那个小喇叭上装一节小电池。

Attach a small battery to the little loudspeaker .

这个手机的主要毛病在于它的电池不耐用。

The main drawback of this cellphone is that its battery easily loses its charge .