| 1. | Chemical degradations are laborious and time-consuming .
化学降解法复杂且费时间。 |
| 2. | Chemical degradation is very slow so that it becomes more concentrated in successive stages of the food chain .
化学的递降分解作用十分缓慢，以致它在食物链连续各阶段中变得更为浓缩。 |
| 3. | Chemical degradation is very slow so that it becomes more concentrated in successive stages of the food chain .
化学的递降分解作用十分缓慢，以致它在食物链的连续各阶段中变得更为浓缩。 |
| 4. | Chemical degradation in zno - based varistors
压敏电阻的化学蜕变 |
| 5. | Rubber - determination of carbon black content - pyrolytic and chemical degradation methods
橡胶.碳黑含量的测定.热解和化学降解法 |
| 6. | The chemical degradation method established by edman in 1950 has been a routine approach for n - terminal sequencing and is widely employed by automated protein sequencer
运用edman降解进行蛋白质n端顺序测定已成为十分完善的技术，并已经实现了自动化。 |
| 7. | A series of batch experiments were carried out to determine the chemical degradation and biodegradation parameters of herbicide dinoseb in various soil samples
摘要利用一系列批实验来研究地乐酚在不同土壤样本中的非生物降解和生物降解，并对各土壤特性与降解参数的相关性作统计分析。 |
