free pole 中文意思是什麼
free pole
解釋
自由磁極-
Only the man who was in charge of the single lamp at the north pole, and his colleague who was responsible for the single lamp at the south pole - only these two would live free from toil and care : they would be busy twice a year
北極僅有一盞路燈，南極也只有一盞。唯獨北極的點燈人和他南極的同行，過著閑逸懶散的生活他們每年只工作兩次。 -
Get yang ' s module by coupled vibration of free pole
懸絲耦合振動法測楊氏模量
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