Design of high precision universal constant temperature control system for electric resistance furnace based on plc 的通用高精度恒温控制系统设计
2.
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 浑水时匀流速分布可分成两个流区，两个流区的分布均遵循对数规律，只是相应的卡门常数有所不同。
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