ground locomotive 中文意思是什麼
ground locomotive
解釋
地面用電力機車- ground : adj 碾碎了的，磨過的，磨成粉的。 ground and polished piston 【機械工程】研磨活塞。n 1 地，地面；...
- locomotive : n 1 火車頭，機車。2 〈pl 〉 〈俚語〉腳。3 能行動的動物。4 節奏逐漸快起來的集體歡呼。adj 1 運動的...
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To work out a mathematical relationship of the “ dopplereffect ” ， relating the pitch to the relative motion of source andobserver ， the austrian scientist christian johann doppler placedtrumpeters on a railroad flat car and musicians with a sense ofabsolute pitch near the tracks. a locomotive engine pulled theflat car back and forth at different speeds for two days. themusicians on the ground “ recorded ” the trumpet notes as the trainapproached and as it receded
為了計算出「多普勒效應」的一個數學關系，即音調和運動中的聲源和觀察者之間的相對關系，奧地利科學家克里斯蒂?約翰?多普勒讓幾位吹號人坐在一節平板火車上，讓幾個對音調特別敏感的音樂家坐在鐵軌附近。 -
The steam locomotive of the jijie - gejiu line is built by baldwin works of u. s. a in 1930. he continued to run for 70 years in the ground of the china yunnan where left distantly from america
雞個線的蒸汽機車是美國baldwin機車廠1930年製造的，它來自遙遠的美國，在中國雲南地區行駛了70年之久。
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