| 单词 | tracheid |
| 释义 | tracheid [`trā·kē·ǝd] BOTANY An elongate, spindle-shaped xylem cell, lacking protoplasm at maturity, and having secondary walls laid in various thicknesses and patterns over the primary wall. |
| 随便看 |
|
科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。