久久国产偷任你爽任你,尤物av无码色av无码 ,国产精品亚洲专区无码不卡,国产精品毛片在线完整版SAB

谷騰環(huán)保網(wǎng)

EST工業(yè)(中國)公司

關(guān)注度:60 活躍度:1 谷騰指數(shù):151

EST工業(yè)(中國)公司

             來源:EST工業(yè)(中國)公司 閱讀:995 更新時間:2008-06-23 15:22

        The connection between chemistry & electricity&is a very old one, going back to Alessandro&Volta‘s discovery, in 1793, that electricity&could be produced by placing two dissimilar&metals on opposite sides of a moistened paper.

        By using electrochemical principles, electrical energy is converted into the chemical energy of desirable materials.

        Nature can convert chemicals into electricity in ways that we regret: corrosion is an example of this unwelcome conversion.

        Electrodes are the places where chemistry converts to electricity, or vice versa. A typical electrode is the surface of a piece of metal in contact with a solution of salts and other chemicals dissolved in water.


關(guān)于“EST工業(yè)(中國)公司 ”評論
郵箱: 密碼: 新用戶注冊

網(wǎng)友評論僅供其表達(dá)個人看法,并不表明谷騰網(wǎng)同意其觀點(diǎn)或證實(shí)其描述。

工程案例 +more

长葛市| 苍南县| 竹溪县| 五指山市| 中方县| 巨野县| 卢氏县| 太湖县| 邯郸市| 星子县| 客服| 海丰县| 前郭尔| 长汀县|