Deep under the Black Hills, the United States is turning a historic gold mine into what is effectively a colossal ...

Food retailers are transitioning from HFCs to CO₂ or A2L refrigerants, but the right choice depends on climate, codes, cost, safety, and skilled labor availability.

Abstract: There are a lot of application requirements for liquid level measurement in engineering. At present, the formula of regular or uniform field is used in the calculation of the corresponding ...