Answer
THE MAIN ROTOR AND TAIL ROTOR
主旋翼和尾旋翼
WINDOW QUESTION · ANSWERBUILD CLUB
The question
WHAT ARE THE TWO ROTORS ON THE TOP AND TAIL OF A HELICOPTER CALLED?
直升機頂部和尾部的兩組旋翼，分別叫什麼？
Why it works
THE MAIN ROTOR SITS ON TOP; THE TAIL ROTOR SITS AT THE REAR
主旋翼位於頂部，尾旋翼位於機尾
See it in action · BUILDING A LEGO HELICOPTER
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