precipitated out 怎样理解？ the solution was dialyzed to remove inorganic salts and passed through a 10,000 mw membrane. 溶液被透析除掉其中的无机盐后，通过一层10,000 mw 膜。 the dialyzed solution was reduced under vacuum to 500ml and the product precipitated out with methanol (5l). 透析后的溶液在减压下浓缩到500ml，然后用甲醇沉淀出产品5l。 the solid was filtered, washed with methanol, acetone and mtbe and crushed to a fine powder and dried to give 95g. 这些固体被过滤后，再用甲醇、丙酮和甲基叔丁基醚冲洗，再研成细粉、干燥成95克（产品） 只看了第一页，后面的没有看，不知道是否正确 查看更多
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