1) portable classroom
活动教室
2) activities of teaching and research group
教研室活动
3) ventricular activity
心室活动
4) removable chamber
活动药室
1.
In order to overcome the sealing problems of removable chamber of cased telescoped ammuni- tion (CTA) under transient high pressure condition,a novel self-impacted combined sealing system was designed.
针对埋头弹火炮活动药室端部接触面上气体密封问题瞬态高压的特点,设计了一种新型的组合自紧式密封系统。
补充资料：教研室
教育厅、局和学校中研究教学问题的组织。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条