nitrogenasen.[生化]固氮酶
nitrogenn.氮
Nitrogen uptake rate氮吸收速率
nitrogen mustard gas氮芥子气
nitrogen trifluoride三氟化氮
nitrogen narcoticism氮麻醉
nitrogen in the coal煤中氮
Nitrogen atomization氮气雾化
Nitrogen fiertilizer氮肥
nitrogen consumption氮肥用量
Nitrogen Mustard-N盐酸氧氮芥[烷化剂抗肿瘤药]
Nitrogen-inhibitor氮抑制剂