英语语法分析

The conditions of isolation and culture of protoplasts from resistant Astragalus cicer L. cell line, Helianthemum Songaricum Schrenk and Zygophyllum xanthoxylum were studied.

对鹰嘴紫云英抗性系、半日花、霸王三种植物进行了原生质体分离和培养条件的研究。