| 1. | Hard water which can be softened by adding sodium carbonate is called permanent hard water .
经过加入碳酸钠能被软化的硬水，称为永硬水。
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| 2. | Examples are sodium carbonate and potassium acid phthalate which are used to standardize acid and base solutions .
例如碳酸钠和邻苯二酸氢钾，分别用来标定酸和碱溶液。
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| 3. | The manufacture of sodium alkalis , that is sodium carbonate
生产碱性纳，即
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| 4. | Hygienic standard for sodium carbonate in the air of workplace
车间空气中碳酸钠卫生标准
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| 5. | Phytopharmaceutical products . sodium carbonate . requirements
植物药物学产品.碳酸钠要求
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| 6. | The crude sodium carbonate ash obtained from these plants
苏打灰从这些植物中获得的粗碳酸钠灰
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| 7. | Chemical reagents - sodium carbonate , anhydrous
化学试剂无水碳酸钠
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| 8. | Working chemical - sodium carbonate anhydrous
工作基准试剂
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| 9. | Primary chemical - sodium carbonate , anhydrous
第一基准试剂
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| 10. | Sodium carbonate for industrial use - part 1 : determination of bulk density
工业用碳酸钠.第1部分:体密度的测定
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