请输入您要查询的字词:
单词
dubnium
释义
dubnium
Encyclopedia
理学
放射性元素
释
dubnium
𬭊
人工放射性元素,元素符号Db,原子序数105,半衰期最长的同位素的质量数268。属周期系ⅤB族。以俄罗斯杜布纳联合核子研究所所在地杜布纳(Dubna)命名。
随便看
flight director system
flight dynamics of aircraft
flight envelope
flight fault detection
flight fault isolation
flight fault prediction
flight feather
flight hazardous weather
flight health management
flight height
flight illusion
flight information region
flight information service
flight line of aerial photography
flight management system
flight managment system
flight mechanics
Flight Opeation Center
flight operation control
flight path angle of aircraft
flight performance
flight performance management
flight performance of aircraft
flight performance reserve
flight plan of aerial photography
科学参考收录了854744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。
Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号
更新时间:2026/3/3 6:37:57