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RT550型越野轮胎起重机； 吊运行驶； 带载伸缩； 起重作业；
Model RT550 wheel type off-road crane; Load carry and travel; Boom telescoping with load; Lift operation;
youdao
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RT550型越野轮胎起重机； 吊运行驶； 带载伸缩； 起重作业；
Model RT550 wheel type off-road crane; Load carry and travel; Boom telescoping with load; Lift operation;
youdao