Home > Term: Graham pressure surveying apparatus
Graham pressure surveying apparatus
A barometric surveying instrument that is free from the many defects of the aneroid barometer. The apparatus records the change in pressure of a constant volume of air maintained at a constant temperature.
- Sõnaliik: noun
- Valdkond/domeen: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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- ed.young
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(Milwaukee, United States)
