1) Retro-reflective screen
回射屏
1.
Hybrid diffractive/refractive system design of head-mounted projective display using retro-reflective screen;
采用回射屏的折/衍射头盔投影显示器设计
2) return-barrier
返回屏障
3) echo board
回声屏<声>
5) ribbon panel
回带管屏
6) radiation shielding
射线屏蔽
1.
The radiation shielding and magnetic properties of rare earth/polymer composites were reviewed with 10 references.
综述了稀土 /高分子复合材料的射线屏蔽性能和磁性能。
2.
To take advantage of this feature of rare earth,a light weight,lead-free radiation shielding materials can be prepared.
由于稀土元素具有特殊的电子层结构,可以弥补铅元素对能量处于40-88keV的X射线吸收的不足,利用稀土的这一特性可制备出一种质量轻,无铅毒的射线屏蔽材料。
补充资料：回屏
1.即围屏。一种可以折叠的屏风。
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