03888022-n 'a concave reflector used to produce a parallel beam when the source is placed at its focus or to focus an incoming parallel beam';
 
汉语 抛物 柱面 反射镜 , 拋 物面 反射镜 , 拋物面反射镜 , 抛物柱面反射镜
英语 parabolic reflector , paraboloid reflector
日语 集音機
Definitions
英语
a concave reflector used to produce a parallel beam when the source is placed at its focus or to focus an incoming parallel beam
日语
光源がその焦点に置かれた時に平行な光線を発生させたり、入ってくる平行な光線を焦点に集めるのに用いられる凹状の反射鏡
Relations
Hyponym: parabolic_mirror
Hypernym: reflector
Semantic Field: artifactn
External Links

Langs:
Seen Lemmas: pemantul;
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