空瓮性
amphoricity
空瓮性的
amphoric
空瓮性呼吸音
amphoric accentuated; amphoric breathing
空瓮性回声
amphoric echo
空瓮性罗音
bottle sound
空瓮性水泡音
amphoric bubble
空瓮呼吸音
amphoric respiration
空瓮音
amphoric note; amphoric rale; amphoric resonance; bottle sound; hollow respiration
空瓮语言
amphoric voice
空洞语音
amphoric voice; caverniloquy; cavernous voice
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
绝对真空
absolute vacuum
军事航空管制
military air-traffic control
卡尔真空烘箱
carr oven
开放领空
open skies