The operator has to be smart enough to control the backhoe and tractor movements.
精明的经营者已被控制铲、拖拉机行驶。
The tractor and Radio control transmitter that allows the operator to control its movements.
拖拉机和无线电控制发射机，让营办商控制其运动。
The tractor and Radio control transmitter that allows the operator to control its movements.
拖拉机和无线电控制发射机，让营办商控制其运动。
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