| Subject | English | Bulgarian |
| construct. | crawler crane | гъсеничен кран |
| construct. | crawler-mounted excavator | гъсеничен багер |
| agric. | crawler track | гъсеничен |
| tech. | crawler track | гъсенична верига на трактор |
| forestr. | crawler tractor | гъсеничен трактор |
| agric. | crawler tractor | верижен гъсеничен трактор |
| construct. | crawler trailer | верижно ремарке |
| construct. | crawler trailer | гъсенично ремарке |
| forestr. | semi-crawler tractor | полуверижен трактор |
| comp., MS | web crawler | програма за уеб обхождане (An automated program that searches the Internet for new Web documents and places their addresses and content-related information in a database, which can be accessed with a search engine. Generally considered to be a type of bot, or Internet robot) |