spread beam sling 带梁的吊索

Beam spread 声束扩散 ; 束发散 ; 光束扩展

angular-spread beam 发散束

beam energy spread 束能展宽

beam momentum spread 束动量分散

spread-out beam 延伸线束

spread-out bragg peak beam 展宽bragg峰的离子束

atom beam spread 原子流发散度