Từ Vựng Nâng Cao cho TOEFL - Kỹ thuật và Điện tử

a field of study that deals with the building, designing, developing, etc. of structures, bridges, or machines

kỹ thuật

the branch of physics and electrical engineering that focuses on designing circuits that use transistors and microchips

điện tử

a small semiconductor device, used in television and radio sets, able to amplify or rectify an electric current

transistor

a solid substance that conducts electricity or heat better than insulators, but not as well as most metals

chất bán dẫn

an electric current that flows only in one direction

dòng điện một chiều, DC

a thin board on which the circuits are printed

bo mạch, bảng mạch

a failure in a circuit caused when the electricity flows in the wrong route due to wire damage or fault in the connections of wires

ngắn mạch

a conductor through which electricity travels to or from an object, such as batteries

mắc điện

the electronic potential and force whose measurement unit is volts

điện áp, vôn

an electric device that is used to increase or decrease the voltage of an alternating current

máy biến áp, thiết bị biến áp

a piece of electronic equipment used for sending electromagnetic waves carrying radio or television signals

máy phát, bộ phát

an electric device that is used to accumulate electric charge

tụ điện, tụ điện

to allow heat or electricity be transmitted

dẫn, truyền

to firmly attach or tighten something using a turning metal fastener

vít, siết chặt

a piece of metal like a thick nail without a point that used to secure assembled parts by passing through holes and tightening with a nut

bù, vít

a flat piece of metal with a hole in the middle through which a bolt is put to secure or fasten objects together

đai, vòng

a wheel with a set of square or triangular teeth sticking out around the edge that fits into the edge of a similar wheel, causing both wheels to turn

răng, bánh răng

an electronic device with two terminals, typically allowing the flow of current in one direction only

đi-ốt

an electrical device that is used to stop or control the flow of current in a circuit in case it is too strong

hộp cầu chì, thiết bị bảo vệ

a machine that produces electricity by converting mechanical energy into electrical energy

máy phát điện, thiết bị phát điện

a device that allows movement between mechanical parts of a machine or converts backward and forward motion into circular movement

tay quay, crank

a metal bar in an engine that enables movement and power to be transmitted from one part to another

trục, thanh

an instrument that automatically controls the temperature of a room, machine, etc.

nhiệt kế, thiết bị điều chỉnh nhiệt độ

a device that allows steam, liquid, etc. to escape a machine, if the pressure inside the machine becomes too high

van an toàn, van xả áp

an area of technology that is concerned with the study or use of robots

robot

an electronic device that uses a small electrical current to control a larger current, acting like an automatic switch

rơ le

a piece of equipment for generating oscillating electric currents or voltages by non-mechanical means

dao động

a substance that doesn't conduct heat, sound, etc.

chất cách điện

a device that converts the energy of the sun into electricity

tế bào năng lượng mặt trời, tế bào quang điện

the rotating part of a machine that revolves around a stationary part

rotor

to provide new electrical wiring for a building or machine

đi lại dây điện, mới dây điện

an electric current that reverses direction periodically, typically used in power distribution systems due to its efficiency in long-distance transmission

dòng điện xoay chiều, dòng điện AC