射束: beam密度: density; thickness束密度: beam density磁束密度: flux density档紧束密度: packing density file; packing factoi电子束密度: electron beam density光束密度: beam density紧束密度: packing density file双光束密度计: double beam densitometer; double-beam densitometer; double-beam-densitometer; double-beamde itometer文件紧束密度: packing density file表观齿磁束密度: apparent tooth density视在齿密度 表观齿磁束密度: apparenttoothdensity电子枪电子束密度倍增率: electron-gun density multiplication射束: [电学] beam 未按无线电射束飞行(脱离航线) off the beam 密度: 1.(密集的程度) density; thickness 火力密度 density of fire; 兵力密度 density of troops; 那个国家的人口密度为每平方英里685人。 the population density of that country is 685 per square mile.2.[物理学] (物体的质量和其体积的比值) density 电流密度 current density; 海水密度 seawater density; 水银的密度比水大得多。 mercury has a much greater density than water.; 密度计 densimeter; densitometer; density gage; density indicator; gravitometer 多射束: multiple-beam◇多射束辐射 multiple-beam radiation发射束: transmitted beam反射束: reflected beam辐射束: beam housing; radial bundles; radial strand; radiant flux; radiation beam宽射束: broad beam; broad-beam condition; broad-beamcondition绕射束: diffracted beam入射束: incidence beam; incident beam; incoming beam三射束: three beam散射束: disperse beam; scattered beam; scattered out beam; scattered-out beam; scatteredbeam射束靶: beam target