rzecz.

opisometer (прибор для измерения длины кривой линии на чертеже || An opisometer, also called a curvimeter, meilograph, or map measurer, is an instrument for measuring the lengths of arbitrary curved lines.

wikipedia.org)

bud.

measuring wheel; perambulator

geod.

circumferentor

hydrol.

contour tracing apparatus

curvometer (also: CURVIMETER: an instrument for measuring the length of a curve, the simplest form consisting essentially of a wheel that is rolled tangentially along the curve and a recording dial

curvimeter; opisometer; map measurer

topol.

map-measurer

urządz.

map measurer (wikipedia.org); meilograph (wikipedia.org)

zasob.

contour tracing apparatus apparatus

Rosyjski tezaurus