phloem是什么意思
2024-01-30 21:00:17
phloem
n. 韧皮部；筛部
近义词：bast，
英英释义
Noun
- (botany) tissue that conducts synthesized food substances (e.g., from leaves) to parts where needed; consists primarily of sieve tubes
例句
用作名词(n.)
- In vascular plants, the xylem and phloem serve to translocate such substances.维管植物的木质部和韧皮部主要进行对这类物质进行运输。
- The secondary phloem consisted of sieve cells and phloem parenchymas.根的次生韧皮部则由筛胞和韧皮薄壁细胞组成。