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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。

400 Kilovolt install transformer , charge of electricity is very cheap , well of deep water of for private use readily .

400千伏安变压器一台，电费很便宜低价，自己使用深水井一口。

West to east , guizhou power grid company to seize the opportunity to focus on construction of 500 kilovolt power grid in guizhou ring .

西到东，贵州电网公司将抓住机遇，把重点放在贵州500千伏环形电网建设。