beam ratio
短语词组
- cable beam stiffness ratio 索梁剛度比
- beam propagation ratio 光束傳播因子
- beam sharpening ratio 波束銳化比
- beam splitting ratio 分光比
- beam expanded ratio 擴束比
- beam length ratio 寬長比
- beam intensity ratio 光強比
- beam expanding ratio 擴束比
- beam draft ratio [船]寬度喫水比;型寬 返回 beam ratio