per·am·bu·la·tor
noun/pəˈræmbjuleɪtə(r)/
/pəˈræmbjuleɪtər/
- (specialist) a device consisting of a wheel on a long handle, which is pushed along the ground to measure distances
测距仪 - (old-fashioned, British English) a pram (= a small vehicle on four wheels for a baby to go out in, pushed by a person on foot)
婴儿车（= 供婴儿外出、由人步行推着的四轮小型车辆）