施主-受主对光谱
donor-acceptor pair spectrum
飞机主机械操纵系统
main mechanical manipulating system of aeroplane
集装箱装卸机主机架
container handler main frame
p型深受主能级
p-type deep accepter-like trap
贬抑无辜受害者
derogation of innocent victim
不同程度受害
damage to different degrees
感受机制
odor perception mechanism