... 火灾原因调查 fire cause investigation 起火原因 ignition cause 灾害成因 cause of disaster formation ...
基于1个网页-相关网页
·2,447,543篇论文数据，部分数据来源于NoteExpress
Engineers discovered the problem during fueling, and worried that any excess hydrogen on the launch pad could cause an explosion during engine ignition.
VOA: standard.2009.03.15
应用推荐
模块上移
模块下移
不移动