例句與造句

1. Mariner 10 incorporated a Venus flyby followed by an orbiter round Mercury, and required the network of 64 m antennas and special DSN enhancements including use of a developmental supercooled maser at DSS 43, installation of an S / X-band dichroic reflector plate and feed cones at DSS 14 and enhanced data transmission circuits from the DSN stations to JPL . The second encounter with Mercury in 1974 was at a greater distance and the technique of " arraying " antennas, which had been demonstrated by Spanish engineers at the Madrid complex, was used at Goldstone.
2. It's difficult to find feed cone in a sentence. 用feed cone造句挺難的