1、Hard water which can be softened by adding sodium carbonate is called permanent hard water.
經過加入碳酸鈉能被軟化的硬水，稱為永硬水。

2、Sodium carbonate for example, is recovered from black liquor in soda pulp mills.
以碳酸鈉微粒，是從純堿紙漿廠的黑色液體中回收的。

3、The addition of sodium carbonate into the grinding process can realize the selective desliming.
磨礦過程中添加碳酸鈉，可實現(xiàn)礦泥的選擇性脫除。

4、By 1791, Nicolas Leblanc had succeeded in producing sodium carbonate from salt by a 2-step process.
1791年，尼古拉斯·盧布朗用“兩步法”(2 - step process)成功的從食鹽中制造出了碳酸鈉。

sodium carbonate翻譯