机－机双基地雷达
bistatic radar onboard airplane
双机双桨
double engine and double oar
Double Engines and Propellers
双质体振动放矿机
dual plastids vibration ore feeder
双质体振动给料机
Two-mass vibration feeder
优质砂体圈闭
high quality sand body traps
有机质质量
Quality of soil organic matter
Quality of organic matter
半导体机体光学
semiconductor integrated optics
柴油机机体和转向架
Diesel Engine Body and Bogie