履带式起重机英文翻译
crawler crane
或track crane

履带式起重机英文翻译例句
Software Design of Large Scale Crawler Crane Overall Design System 
大型履带式起重机总体设计系统软件设计

Diagnosis of hook dropping failure for 80t track crane 
80t履带式起重机主钩下落故障的诊断