واژگان ضروری برای TOEFL - مهندسی و پژوهش

tools or machines that are designed for a specific purpose

a device or tool that requires specific knowledge on how to be used

a small piece of material that is a semiconductor, used to make an integrated circuit

a piece of equipment by which the far objects, particularly those in space, are made clearly visible

a long and thin piece of metal that carries an electric current

something such as a button or key that turns a machine, lamp, etc. on or off

a machine or device that detects any changes in the environment and sends the information to other electronic devices

the complete circle through which an electric current flows, typically consists of the source of electric energy

a metal fastener with a spiral thread that is turned into material to hold objects together

machines, especially large or complex ones, considered collectively

operated by a machine or by a system of moving parts

a set of insulated wires or fibers used to carry electricity or electronic signals

a very large tall machine used for lifting heavy objects

the quantity that is possible by a machine, etc. to produce

to maintain, repair, or prepare something so that it is fit for use

an early or preliminary model of something from which other forms are developed or copied

a flow of electricity resulted from the movement of electrically charged particles in a direction

a device used for connecting two pieces of equipment that are not compatible with each other

to make a representation of something, especially one based on mathematics

a room or building equipped for scientific research, experiments, testing, or the production of chemicals or medicines

a small amount of a substance taken from a larger amount used for scientific analysis or therapeutic experiment

a specific way or process of doing something, particularly an established or systematic one

to direct or participate in the management, organization, or execution of something

a judgment on the quantity and quality of something after careful consideration

relating to or involving scientific experiments, especially those designed to test hypotheses or explore new ideas

a piece of information discovered as a result of a research

a proposed explanation for a situation or set of facts that has not yet been proved

someone on whom scientific experiments are tested

to notice or discover something that is difficult to find

to arrange people or things into groups according to shared characteristics or qualities

the act of finding something for the first time and before others

a person whose job is to study ancient societies using facts, objects, buildings, etc. remaining in excavation sites