?应急抛弃
... 应急配电板：emergency switchboard 应急抛弃：emergency jettison 应急排水系统：emergency dewatering system ...
应急投放选择开关
应急抛盖手柄
应急投放选择电门
It also provides the ability for astronauts to jettison anytime from a rocket in the event of an emergency.
FORBES: Move up http://i.forbesimg.com t Move down
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。