- 广角: wide angle
- 覆盖: cover; overlap
- 斜角覆盖层: diagonal sheathing
- 广角: wide angle◇广角镜头 orthostigmat; wide-angle lens; 广角扫描 wide-angle scanning; 广角透镜 wide-angle lens; 广角望远镜 wide-angle telescope; 广角物镜 wide-angle lens; wide-angle objective; wide-angled object glass; wide-angle object lens
- 角覆板: corner plate
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