| 1. | The barium sulfate must be a lump-free powder .
硫酸钡必须是无块的粉末。
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| 2. | and sulfates are known to corrode metals.
已知硫酸和硫酸盐能腐蚀金属。
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| 3. | The use of calcium sulfate requires an greater capital investment .
使用硫酸钙做原料，需要更多的基建投资。
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| 4. | Iron or steel placed in copper sulfate also receives a loose immersion deposit .
铁或钢放入硫酸铜中，也会生成疏松的浸镀层。
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| 5. | The use of sulfates and carbon dioxide requires strictly anaerobic conditions .
使用硫酸盐和二氧化碳时，需要严格的厌氧条件。
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| 6. | The tricalcium phosphate consituent is converted to phosphoric acid and calcium sulfate .
磷酸三钙组分转化成为磷酸和硫酸钙。
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| 7. | He postulated that the carbon reacts initially with the sulfate to form calcium sulfide .
他认为碳最初和硫酸盐反应生成硫化钙。
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| 8. | Some manufacturers used a little fumed litharge and basic lead sulfate here also .
有些制造厂也用少量细质的一氧化铅和碱式硫酸铝。
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| 9. | The reaction of sulfate with aldehydes and ketones has been known for many years .
大家知道硫酸盐能与醛类和酮类反应已有许多年了。
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| 10. | Ordinarily, standard ferrors sulfate loses strength with age, due to air oxidation .
标准硫酸亚铁盐类由于受到空气的氧化一般会随时间而失去其作用。
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