TOEFL এর জন্য প্রয়োজনীয় শব্দভাণ্ডার - প্রকৌশল এবং গবেষণা

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 small pointy piece of metal that can be fasten into wooden or metal objects using a screwdriver to hold things together

machines, especially large ones, considered collectively

(of an object) powered by machinery or an engine

a group of wires bundled together for transmitting electricity that is protected within a rubber case

a very large tall machine used for lifting heavy objects

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

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

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

a place where people do scientific experiments, manufacture drugs, etc.

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

an explanation based on limited facts and evidence that is not yet proved to be true

someone on whom scientific experiments are tested

to notice or discover something that is difficult to find

to put people or things in different categories or groups

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