跨年轉播 台北網站相關資料
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跨年轉播 台北網站相關資料
PDC Summit 2013
The 2013 PDC Summit is being held in San Francisco February 24-27. This application provides conference attendees with important information including …
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Drill Collar Wt. vertical hole
This little app is used to calculate the amount of drill collar weight required to obtain a desired weight on bit when drilling a vertical hole. The a …
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