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2021.3.11. 목. Daily Missions Daily Missions

useful  유용한  windmill  풍차
waterwheel  수차    efficient  효과적인, 효율성 있는
gasoline engine  휘발유 엔진  diesel engine  디젤/경유 엔진
heat engine  열기관  coal  석탄
turn A to B  A를 B로 바꾸다.  steam  증기
expand  확장하다  1,700 times its size  1,700배 크기가 커지다
drive wheels  바퀴를 돌리다  pushes a piston  피스톤을 밀다
back and forth  앞 뒤로  attach  달라 붙다
connecting rod  커넥팅 롸드  make it go around  그것을 돌게 하다
valve  밸브  cylinder  실린더
reciprocating engine  往復機關  chief source  주된 근원
automobile  자동차  vanish    사라지다
invent  발명하다  turbine engine  터빈엔진
A turbine is a large wheel with dozens of blades around it.
Spinning turbines can be used to make electricity or drive a ship’s propellers.
A car’s engine is called internal combustion engine because the fuel is burned inside the engine.
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