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universal constant 【數學】普適常數[恒量]。

universal coordinated time

The mean velocity profile of sediment - laden flow can bet divided into two regions . the profiles for both regions follow the logarithmic law . only the von karman universal constants are different from each other 渾水時勻流速分布可分成兩個流區,兩個流區的分布均遵循對數規律,只是相應的卡門常數有所不同。

Design of high precision universal constant temperature control system for electric resistance furnace based on plc 的通用高精度恒溫控制系統設計