介绍了一种在凝胶体系中用扩散法制备草酸亚铁的结晶方法.A diffusion method for the preparation of ferrous oxalate in a gel system was presented.实验结果表明:添加有氯化亚铁的细水雾,其灭火性能发生了显著变化.This paper presents an experimental study of fire suppression effectivene...
Baxter arrived here this afternoon, on a surprise visit.巴克瑟特今天下午突然来此拜访.This afternoon the Palestinians held an impromptu press conference.今天下午巴勒斯坦方面临时召开了记者招待会。Oh, those books! I meant to put them away before this afterno...