net assimilation的用法和样例：
例句
- Specific leaf weight and nitrogen content had positive relation to the net assimilation rate.
比叶重和含氮量与净同化速率间存在正相关。 - The biometric results demonstrated that there were significant differences among testing varieties in net assimilation rate and net photosynthetic rate.
生物统计结果表明，供试品种间净同化速率和净光合速率存在显著差异。
