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n. 主要部分, 干线, 体力, 力量, 主群组
a. 主要的, 重要的, 全力的
【计】 主群组
【医】 手

main stream electric main main transmission main plunger main roof main crosshead main highway ring main main transmitter main station hydraulic main main turret main reinforcement main-wheel main sequence main operation main partition main uses main harvest main head main-frame main department