| 1. | Mercury fulminate may contain trace of mercuric oxalate .
雷汞中可能含有微量的乙二酸汞。 |
| 2. | A normal cell produces only a minute amount of its own cholesterol .
一个正常细胞只为自己制造极微量的胆固醇。 |
| 3. | Some animals may consume insignificant amounts of the primary production .
有些动物可以消耗很微量的初级产物。 |
| 4. | The rest of the chemical elements occur in only minor or trace quantities .
其余的化学元素仅以少量或微量出现。 |
| 5. | Most of the micronutrients will be found as contaminants in other fertilizers .
大多数微量养分，经常是肥料的污染物。 |
| 6. | Even the smallest amount of wrong substances could cause complete catastrophe .
即使是极微量的有害物质，也会造成极大的灾难。 |
| 7. | This light consists of a glass tube containing argon and a droplet of mercury .
这种灯是由一根充有氩气和微量汞的玻璃管组成。 |
| 8. | Hydrolysis of polymers if often catalyzed by traces of acids or bases .
正和它们的低分子量的类似物一样，微量的酸或碱常能促进聚合物的水解。 |
| 9. | Vitamins are very potent organic substances that occur in minute quantities in natural foodstuffs .
维生素是以微量形式存在于天然食物中的非常有用的有机物。 |
| 10. | These trace gases are not detectable by smell in any but the most heavily polluted atmosphere .
这些微量气体除了在污染最严重的大气外，是不能凭嗅觉察觉到的。 |
