n. 摇篮车, 勘查者, 漫游者, 路程计

[ noun ]
a small vehicle with four wheels in which a baby or child is pushed around
<noun.artifact>

Perambulator \Per*am"bu*la`tor\, n.
1. One who perambulates.

2. A surveyor's instrument for measuring distances. It
consists of a wheel arranged to roll along over the
ground, with an apparatus of clockwork, and a dial plate
upon which the distance traveled is shown by an index. See
{Odometer}.

3. A low carriage for a child, propelled by pushing; a baby
carriage; -- called also {pram}, in Britain.
[1913 Webster +PJC]

Ambulator \Am"bu*la`tor\, n.
1. One who walks about; a walker.

2. (Zo["o]l.)
(a) A beetle of the genus {Lamia}.
(b) A genus of birds, or one of this genus.

3. An instrument for measuring distances; -- called also
{perambulator}. --Knight.