英和和英

a survey-map

a scale of linear measurement

levelling

an instrument for mechanically measuring the depth of water beneath a ship, called depth-sounder

triangulation

a surveyor's mark

hydrographical surveying

a surveyor

surveying instruments

{a way of measurement} called trilateration

a device for making soundings

a way of measuring called triangulation

a measuring tool used to survey land, called a 'ryoochi-jaku'

land surveying

a measuring chain

a method of surveying

a cylindrical wooden pole used in land surveying

a tool used for land-surveying

an instrument used for surveying

a pole used for measurement

an act of surveying the topography of an area

the Land Surveying Department

a measuring device called {telescopic level}

an surveying instrument used for measuring angles, called an optical square

a {datum plane} used in measuring

implement used for measurement called heliograph or a heliotrope

a scale used for leveling, called leveling rule

a ruler used to measure water level, called "staff"

They are making a survey of the site.

a graduated rod used in surveying