搜尋結果
This site is dedicated to the memory of Special Forces from World War 2 to the present who served and died in places and under circumstances most of us can only imagine in our worst nightmares.
食品化学中的ROH 有机化学里,R指烷基,OH值羟基,ROH连在一起,就是指醇了 指产品中不含有ROHS要求的一些有害物质,通过ROHS测试的意思。
如何正确填写英文表格中的姓和名?