active zone chain-reacting region
... 弹性区 elastic range; elastic region; elastic zone 活性区 active region; active section; active zone chain-reacting region; core region; fissile region; reacting core; reacting region 属性区 attribute area ...
基于1个网页-相关网页
active zone chain-reacting region
活性区链式反应区
以上为机器翻译结果，长、整句建议使用 人工翻译 。