wye levelの例文

例文

1. The route was surveyed using a Wye level ( an early version of a dumpy level ), again the first recorded use in America.
2. A case containing battle-worn surveying flags, Wye levels, protractors, alidades and other surveying equipment that only a construction worker could truly love gives way to an exhibit room containing about 50 anti-aircraft cannon, mortar tubes and machine guns of all nations and vintages.