?最低要求接收电场强度

...required radiation power ==> 最低要求辐射功率 minimum required receiving field intensity ==> 最低要求接收电场强度 minimum requirements ==> 最低要求 ..

?所需最小接收场强

所需最小接收场强 minimum required receiving field intensity 收场 1.(结束) wind up; end up; stop 草草收场 wind up a matter hastily [perfunctorily]; 这件事不好收场。