the utilization rate of nitrogen的用法和樣例：
例句
- Effect of the regionalized balanced fertilization on nitrogen utilization efficiency and soil nutrient balance was studied.
本文研究了分區平衡施肥技術對氮肥利用率和土壤養分平衡的影響。 - This paper studied the low efficiency of nitrogenous fertilizer of our county, the cause of fertilizer losing and its calamity.
摘要本文主要探討了目前我國氮肥利用率低下，肥料損失的原因及危害。
