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Pascal (unit) - Wikipedia, the free encyclopedia
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日期:2025-06-22
Where N is the newton, m is the metre, kg is the kilogram and s is the second. ... In materials science, megapascals (MPa = N/mm2) or gigapascals (GPa = kN/mm2) are ... The pascal is also equivalent to the SI unit of energy density, J/m3....看更多