Nim Goldman had been conferring with somebody at the dispatch console.尼姆?哥尔德曼一直在调度台上与别人商量.He thanked them for the honour they were conferring upon him.他感谢大家给他的荣誉.Some gentlemen were conferring close at hand, but took no ...
与10%碳酸钠溶液 ( 50毫升 ) 混合搅拌,然后再用50毫升水混合搅拌, 从而析出固体.It is stirred with 10 % sodium carbonate solution ( 50 ml ) and then with water ( 50 ml ), after which It'solidifies.经过加入碳酸钠能被软化的硬水,称为永硬水.Hard water which can be softene...