保存外部链接数据
save external link values
编制外劳动用工
employment of external staff
点源型红外制导导弹
point-type infrared missile
调制外差技术
modulation heterodyne technique
额外存储体地址寄存器
XSAR eXtra Storage Address Register
过程控制外围设备
process computer peripherals
红外外差光谱学
infra-red heterodyne spectroscopy
红外外差式辐射仪
infrared heterodyne radiometer