Tree number的用法和样例:
例句
- Mortality is the number or volume of trees periodically rendered unusable through natural causes.
枯损是一类由于自然原因而定期变得无用的林木株数或材积。
- Virus spread within a field depends on the number of virus sources, the number of healthy plants.
田内病毒传播依据病毒源数目,健株数。