胚根鞘：保护幼根的鞘状结构。
【生活】保护套
protective sheath
暂无补充释义。
相关例句
3本产品若超过油管长度可依油管长短来做安装。
相关词条
protective coloration
protective
protective cage
reflective, protective layer
protective casing of hypodermic syringes
protective ferment
discharge tube having screen with conductive, reflective protective layers
emergency protective circuit arrangement responsive to phase failure