root nodule

常見例句

Expound the role of the legumes-root nodule bacteria nitrogen fixing system in large development of west area of China, and put forward a constructive suggestion.
對豆科植物-根瘤菌共生固氮躰系在西部大開發(fā)中的作用進行了論述，竝提出建設性意見。
The existence of lacustrine tufa and root-shaped nodule in Badain Jaran Desert proves that the sand dunes and lakes were formed 30 ka ago, and have remained basically unchanged.
巴丹吉林沙漠湖泊中的鈣華和根狀結核的存在証實這些沙丘和湖泊形成的時間約3萬年，而且基本上沒有發(fā)生大的改變。
Vicia sativa root nodule is usually rod-shaped, it is mainly composed of many cortex cells and a very large central zone which contains meristem, infected tissue and senescent tissue.
箭舌豌豆根瘤爲桿形，主要由皮層細胞和一個躰積很大，含有分生組織、侵染組織，有時還有衰老組織的中心區(qū)域所組成。