短語詞組短語trichloroacetic acid tca precipitation 三氯醋酸沉澱acid base precipitation 酸堿沉澱acid -precipitation method 酸析法Chemistry of Acid Precipitation 酸沉降化學(xué)AIP acid precipitation 酸性降水boric acid precipitation 硼酸析出物nitric acid precipitation method 發(fā)菸硝酸法perchloric acid precipitation 高氯酸沉澱sulfuric acid precipitation method 硫酸沉澱法 返回 acid precipitation