名词
中文翻译：行走式拖拉式挖掘机同义词
同义词：
['truck-mounted excavator', 'crawler-mounted excavator']
例句：
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1. The walking dragline excavator is used for deep mining operations.
行走式拖拉式挖掘机用于深部采矿作业。
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2. The crawler-mounted excavator has a long historyand is widely used in construction sites.
履带式挖掘机拥有悠久的历史，在建筑工地上被广泛使用。
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3. The newmodel of the walking dragline excavator has been introduced to improve efficiency andreduce costs.
新型行走式拖拉式挖掘机已推出，旨在提高效率并降低成本。