短語詞組短語Beam Full Divergence Angle 光束發(fā)散角Beam full divergence 光束發(fā)散角laser beam divergence 激光束發(fā)散infrared beam divergence 紅外線發(fā)散Angle of beam divergence 波束發(fā)散角a beam divergence 空間發(fā)散角laser r beam divergence 激光束發(fā)散beam divergence angle 束立散角;束發(fā)散角;遠(yuǎn)場(chǎng)發(fā)散角;[電子]電子束發(fā)散角 返回 beam divergence