常見例句雙語例句The writing rules of proton balance equation have been proposed and a new writing method hasbeen put forward.同時(shí)建立一種新的書寫質(zhì)子守衡式的方法——直接法，本法準(zhǔn)確、簡(jiǎn)便、易於掌握。 返回 proton balance equation