back chipping 中文意思是什麼
back chipping
解釋
背縫焊渣鏟除-
Then i hit it with my back of my hand, sort of iike i ' m chipping ice with an ice pick
然後我用我的手背攻擊就象用冰錐碎冰 -
Percussion methods of fire - lighting date back to paleolithic times, when some stone age tool - makers discovered that chipping flints produced sparks
打擊生火方法的日期要返回到舊石器時代,當一些石器時代工具生產者發現打火石碎片產生火花。
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