🟩🧱🛒

#minecart #rail system

🛤️🦾

#gantry robot #linear track #robot arm #industrial robot #rail system #cartesian robot

🤖🔛🛤️

#robot on track #linear guide #rail system #guided robot

🚆📏🇲

#train gauge #meter track #rail system #m gauge #transport measurement

🚇🛤️⬇️

#underground railway #subway tracks #metro tunnel #train tracks below #subterranean rail #descending tracks #rail system