The R 9800 belongs to the largest machine segment among crawler excavators.
R 9800 属于履带式挖掘机中最大的机器类别。
Crawler Excavator
原声例句
奇趣工程百科
英语百科
Crawler excavator
A crawler excavator (or crawling digger) is a tracked vehicle designed to dig or move large objects, and is classified by its mode of locomotion. The many types of excavators include wheeled, walker, towed and rail excavators. Related to tracked tanks widely used by armies, these crawlers move upon the same rotating wheel systems; but along with that have the ability to dig, pick and transport excavated materials as they proceed.
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