- Industry: Mining
- Number of terms: 33118
- Number of blossaries: 0
- Company Profile:
The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
比常見的 dip 針敏感得多。儀器包括自由地繞水準軸旋轉的磁鍼和一個非磁性酒吧與末尾附加到其樞紐分析表,在針使角這兩個軸的配重可以各不相同。計量中的總計欄位的更改,可以用來測量垂直領域的變化,如果其平面垂直于磁子午線方向面向。
Industry:Mining