英和和英

a frequency discriminator

an apparatus used to measure microscopic lengths, called comparator

a variable capacitor

a transformer whose voltage ratio of transformation can be adjusted

a rectifier of prejudices

a device called a frequency discriminator

measuring instrument for indicating speed of rotation

a measuring instrument called accelerograph

a counting device called a passometer

a hydrometer whose degrees are calibrated in accordance with a Baume scale, called Baume hydrometer

a measuring instrument called pressure gauge

a level

a sopranino recorder

a tachometer

a device used for measuring the velocity of rotation, called tachometer

a galvanometer of extreme sensitivity

a saccharometer

the centigrade thermometer

dactylic meter

a laser interferometer

a gauge

a transmitter

a wattmeter

a salinometer

a sample of test

the calibrations on a thermometer

a calculator

a calculator

a digital counter

a magnetometer