Sjb - 2 type sand cutting strength distortion high - point tester Sjb - 2型砂剪切強度變形極限測定儀
Third , five schemes based on the combination different precipitation and pumping quantity is applied to the model prediction to predict the water laver in springs zone and high - point groundwater quantity exploited in 2010 本通過對多種巖溶地下水開采方案預報對比,協(xié)調(diào)處理互為矛盾的“保泉”和“供水”目的,最終預報濟南市泉群地下水位標高,確定巖溶地下水的開采方案。
The application of modified asphalt becomes necessary in the construction of high - grade road , as the traffic and wheel load increases . the object of research work for compatibility of modified asphalt is to the high - point of modifying effect 隨著交通量的增大、軸載的增加,在高等級公路的建設中改性瀝青的應用勢在必行,通過改性瀝青的配伍性研究可使瀝青的改性效果達到最佳。
By theoretical analysis and experimental investigation to the exasperate position of the heat transfer in the umbrella - plate falling film evaporator , the exasperate experimental formula of the heat transfer was obtained . with the same reynolds , the high - point heat flux density of umbrella - plate evaporator is higher than vertical - plate evaporator could be observed from above formula , which maked out that with little reynolds liquid film was not easy to break 在實驗條件下得出了傘板式降膜蒸發(fā)器小流量下液膜破裂的實驗關聯(lián)式,此關聯(lián)式表明極限熱通量隨臨界雷諾數(shù)增大而增大,在相同的臨界雷諾數(shù)下,傘板蒸發(fā)器的極限熱通量大于直板形蒸發(fā)器的極限熱通量。