combination
【机械工程】两个或多个机器的组合
combination of two or more machines
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相关词条
combination termination
nozzle-baffle combination system (flapper-and-nozzle system)
combination of rotary-piston pumps with oscillating-piston pumps
combination gyroplane with power-rotor
combination of switches and crossings (slip point)
combination of radio receivers with other apparatus
parental combination