单词：phloem
音标：['flәuem] ；
n. 韧皮部
[医] 韧皮部
[医] 韧皮部
n. (botany) tissue that conducts synthesized food substances (e.g., from leaves) to parts where needed; consists primarily of sieve tubes
词型变化：名词复数形式 : phloems
phloem的用法和样例：
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。
词汇搭配
- stratified phloem叠生韧皮部
- phloem fiber韧皮纤维
- primary phloem初生韧皮部
- secondary phloem次生韧皮部
- interfascicular phloem束间韧皮部
- interxylary phloem木间韧皮部
- external phloem外生韧皮部
【近义词】
- bast树的内皮