| 1. | Sulfur is an essential nutrient for plants .
硫是植物的一种重要的营养元素。 |
| 2. | Sulphur is a constituent of gunpowder .
硫是火药的组分。 |
| 3. | The stable low-temperature form of sulfur is rhombic sulfur .
硫的低温稳定态为正交硫。 |
| 4. | The basic ingredient of the mixture is liquid thiokol .
其基本组份之一是液体聚硫橡胶。 |
| 5. | Man's effect on the sulfur cycle has been considerable .
人类对硫循环的影响一直是很可观的。 |
| 6. | the unionized sulfur species is in water.
溶于水中非电离形式的硫即。 |
| 7. | This approach to mercaptans takes on added importance .
这个合成硫醇的方法，就显得更加重要。 |
| 8. | The preparation of salts of thionic acids illustrates this point .
硫逐酸盐的制备说明这一点。 |
| 9. | Gunpowder is composed of sulfur, carbon, and potassium nitrate .
火药是由硫、碳和硝酸钾组成。 |
| 10. | Only a very limited amount of data is available on thiol esters .
有关硫醇酯类的数据非常有限。 |
