久久国产欧美日韩精品,日韩国产精品久久久久久亚洲,99视频精品全部免费免费,91精品国产综合久久走光

“氫酸”的拼音為：qīng suān...

“氫酸”的英語(yǔ)可以翻譯為：hydracid ...

與氰氫酸的加成是堿催化的.The addition reaction with hydrogen cyanide is base - catalysed.在國(guó)內(nèi)開(kāi)辟了多氫酸應(yīng)用的新篇章,多氫酸在國(guó)內(nèi)油田將擁有廣闊的應(yīng)用前景.The application of the acid in China oil fields has a wonderful prospect....