空腔
cavity
空腔磁控管
cavity magnetron
空腔幅射
cavity radiation
空腔流
cavity flow
空腔滤波器
cavity filter
空腔调谐超外差型频率计
cavity-tuned absorption-type fr-cquency meter
空腔调谐传送型频率计
cavity-tuned heterodyne frequency meter
空腔位移
volumetric displacement
空腔效率
volumetric efficiency
空腔谐振器
cavity oscillator; cavity resonantor; volumetric resonator
空腔谐振器频率计
cavity-resonatior frequency meter
空腔阻抗
cavity impedance
精测进入雷达
precision approach radar
空气搜索雷达
air search radar
净化空气总管
clean air manifold
净空
headroom
clear space
净空高度
head room; head-room clearance; overhead clearance
净空间
clear space
静止空气粘滞性
viscosity of stationary air
绝对空间
absolute space