crawler crane
a type of mobile crane that moves on tracks (crawlers) for stability and can lift heavy loads on rough or uneven terrain
en-GB/ˈkɹɔːlə ˈkɹeɪn/
en-US/ˈkɹɑlɚ ˈkɹeɪn/
a type of mobile crane that moves on tracks (crawlers) for stability and can lift heavy loads on rough or uneven terrain