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单词
protoxylem
释义
WordReference Random House Unabridged Dictionary of American English © 2024
pro•to•xy•lem
(prō′tə zī
′
ləm, -lem),
USA pronunciation
n.
[
Bot.
]
Botany
the part of the primary xylem that develops first, consisting of narrow, thin-walled cells.
proto
- +
xylem
1895–1900
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更新时间:2025/11/13 11:30:05