低抛石基合成防波堤
low rubble mound composite breakwater
氮化物抛物量子阱PQW
nitride parabolic quantum well PQW
氮化物抛物量子阱
nitride parabolic quantum well
单相双连绝缘抛光机
single phase double insulation buffing machine
单偏置抛物面天线
single-offset parabolic reflector antenna
单面抛光机
single side polishing machine
单脉冲抛物面天线
monopulse paraboloid antenna
带抛煤机链条锅炉
chain grate boiler with thrower
打磨轮与抛光轮
scouring wheel and buffing wheel
瓷质全抛釉面砖
fully-polished glazed ceramic tile