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...
"She has a large flat in Mayfair." — "Just so."“她在梅费尔有个大公寓。”——“正是。”Jack drove to Mayfair at breakneck speed.杰克驾车向梅费尔疾驶。A dazzling array of celebrities are expected at the Mayfair gallery to see the pictures.梅费尔美术馆期待星光璀璨的...