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A2 · Science & technology
A2 · 科学と技術
コード, 符号, 暗号
a system of letters, numbers or symbols, or a set of computer instructions, used to represent information
Programmers write code that tells the computer exactly what to do.
プログラマーは、コンピューターに何をすべきかを正確に指示するコードを書く。
類義語ruleslawsguidelinesprinciplessystemconventionprotocol対義語disorderlawlessnesschaosunstructured実験 (jikken)
a scientific test that is done in order to study what happens and to gain new knowledge
Product developers must conduct hundreds of experiments in their research
製品開発者は、研究において何百もの実験を行わなければなりません。
After designing a new product, researchers continue experimenting to determine whether it has other uses
類義語testtrialinvestigationstudyprocedureobservation対義語theoryguessconjecturespeculation研究 (kenkyuu)
a careful study of a subject, especially in order to discover new facts or information about it
For toy manufacturers, research can be pure fun
おもちゃメーカーにとって、研究は純粋な楽しみになり得る。
Part of the research the team does is to determine whether similar products are already on the market
類義語studyinvestigationexplorationinquiryanalysisexperimentation対義語ignoranceneglectcarelessnesssuperficialityシステム, 網
a group of things, pieces of equipment, routes, etc. that are connected or work together
The airline system covers the entire world with flights
その航空会社のシステムは、世界全体を路線でカバーしている。
We need a better system to keep track of how much money we are spending on this vacation
類義語structureorganizationarrangementframeworkmethodprocessscheme対義語disorderchaosrandomnessdisorganization発明する (hatsumei suru)
to produce or design something that has not existed before
Who invented the steam engine?
誰が蒸気機関を発明しましたか？ (dare ga jouki kikan o hatsumei shimashita ka?)
I wish mobile phones had never been invented!
類義語createdesignoriginatedeviseformulatediscover対義語copyimitatereproduceduplicateborrowアンケート調査, 調査, 意識調査
a set of questions asked to many people to find out their opinions or behaviour
We sent an online survey to 2,000 customers last week.
先週、2,000人の顧客にオンラインアンケートを送りました。
The survey found that most users shop on their phones.
類義語pollstudyquestionnaireinvestigationreviewanalysisassessment対義語ignoranceneglectspeculationguesswork技術 (gijutsu)
scientific knowledge used in practical ways in industry, for example in designing new machines
science and technology
科学技術 (kagaku gijutsu)
recent advances in medical technology
類義語applied scienceengineeringinnovationmechanicsautomation対義語naturehandicraftmanual laborprimitive methods発見 (hakken)
an act or the process of finding somebody/something, or learning about something that was not known about before
In 1974 Hawking made the discovery(= he discovered) that black holes give off radiation.
1974年に、ホーキングはブラックホールが放射線を放出することを発見した。
She was shocked by the discovery that he had been unfaithful.
類義語findingrevelationdetectionunearthingascertainmentdisclosurebreakthroughinvention対義語concealmenthidinglossdestruction電気 (denki)
a form of energy from charged elementary particles , usually supplied as electric current through cables, wires, etc. for lighting, heating, driving machines, etc.
The electricity has been turned off.
電気が止められました。
The electricity is off (= there is no electric power supply).
類義語powercurrentvoltagecharge対義語powerlessnessnon-conductivitynonelectricityデジタル (dejitaru)
using a system of receiving and sending information as a series of the numbers one and zero, showing that an electronic signal is there or is not there
I bought a digital camera yesterday.
昨日、私はデジタルカメラを買いました。(Kinou, watashi wa dejitaru kamera o kaimashita.)
類義語electroniccomputerized対義語analogmanual研究者 (kenkyūsha)
a person who studies something carefully and tries to discover new facts about it
The researcher published their findings in a scientific journal.
研究者は科学雑誌に研究結果を発表した。(kenkyūsha wa kagaku zasshi ni kenkyū kekka o happyō shita.)
類義語investigatorscientistscholaranalystexaminer対義語laymanamateurnovicebeginner
