She was forced to live in a cockroach-infested house.她被迫住在一间蟑螂成群的房子里。She was forced to live in a cockroach - infested house.她被迫住在一间蟑螂成群的房子里.A species of cockroach sprays a substance , ethylacrolein, that is a kind of tea...
To produce ( fissionable material ) in a breeder reactor.产生裂变的物质增殖,指在增殖反应堆里产生 ( 可裂变的物质 )To add nonfissionable matter to ( fissionable material ) so as to prevent use in an atomic weapon.使(核材料)中毒 ( 向可裂变材料中 ) 加入不可裂变物质以防止(这...