网站首页 词典首页
By using stibnite direct preparation of sodium pyroantimonate the new process andobtained.
介绍以辉锑矿为原料直接制备焦锑酸钠的新工艺.
互联网
Also discussed in this paper the advantages and disadvantages of the direct preparation process.
从配方参数的角度讨论了直接合成法的优缺点及应用前景.
英汉双解词典包含4367426条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。