英语语法分析

He was demonstrating hydrogen gas production at milliamp and kilovolt levels.

他示范并千伏各级氢气产量为毫安。

One of them combines lithium manganese oxide with other ions, and operates at about three to five volts with a charge capacity of 200 milliamp hours per gram.

平面能源正在研发三种不同的电池化学配方。 其中之一是把锂锰氧化物与其他离子化合，充电电压三到五伏，容量200毫安时每克。

While Milliamp does offer tools and instructions for do-it-yourself battery replacement for an iPod, the company says that replacing the battery in an iPhone is simply too difficult to try at home.

但是，按照Milliamp有限公司的说法，更换iPhone电池，是件不该去尝试的工作，Milliamp是家与ifixit.com竞争的iPhone部件更换公司。 尽管Milliamp确实为自己更换iPod电池提供工具和说明，但是，它表示，试着在家里更换iPhone电池还是太困难了。