uncollidedundegraded碰撞: collide; run into; knock aga ...的: 4次方是 The fourth power of 2 i ...未经碰撞的中子通量: uncollided neutron flux未慢化中子, 未经碰撞的中子: undegraded neutron未经碰撞辐射: uncollided radiation下载手机词典可随时随地查词查翻译