half-cell 同上 ; 半干电池
calomel half cell 甘汞半电池
glass half cell 玻璃半电池
half-cell reaction 半电池反应
quinhydrone half cell 氢醌半电池
half-cell potential [物化] 半电池电势 ; 半电池电位
half cell 半电池
zinc half-cell 锌电偶
standard half-cell 标准半电池
After an hour and a half, I pulled my cell phone out to call the friends I was supposed to meet that evening.
一个半小时后，我拿出手机给我那天晚上要见面的朋友们打电话。
In one recent US survey, about half the teens polled said that their cell phone had improved their communication with friends.
在美国最近的一项调查中，接受调查的青少年中约有一半表示，他们的手机改善了他们与朋友的交流。
The United States invented the modern solar cell over a half century ago.
美国在五十年前就已经研发出了现代太阳能电池。
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