the hood or cap covering the calyx of certain plants: e.g., the California poppy
双语例句
1. While within the high concentration selenium, the reducing strength and the rate of calyptra of roots decreases, so does the bio-production of roots.
而高质量浓度的硒处理根系的还原活力降低、根冠比下降、根系的生物量减少。
youdao
2. While within the high concentration selenium, the reducing strength and the rate of calyptra of roots decreases, so does the bio-production of roots.
