硫

• Sulfur is an essential nutrient for plants .
  硫是植物的一种重要的营养元素。
• Sulphur is a constituent of gunpowder .
  硫是火药的组分。
• The stable low-temperature form of sulfur is rhombic sulfur .
  硫的低温稳定态为正交硫。
• The basic ingredient of the mixture is liquid thiokol .
  其基本组份之一是液体聚硫橡胶。
• 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。
• the unionized sulfur species is in water.
  溶于水中非电离形式的硫即。
• This approach to mercaptans takes on added importance .
  这个合成硫醇的方法，就显得更加重要。
• The preparation of salts of thionic acids illustrates this point .
  硫逐酸盐的制备说明这一点。
• Gunpowder is composed of sulfur, carbon, and potassium nitrate .
  火药是由硫、碳和硝酸钾组成。
• 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。