pumping pattern 中文意思是什麼
pumping pattern
解釋
抽水型式-
When the thickness increases up to a critical value, about 30 nm, the spotty rheed pattern gradually changes to streaky pattern, and the rheed oscillation curve appears. the rheed pattern of the ultra thin lno film deposited in the relatively high oxygen pressure is streaky pattern. with pumping the oxygen pressure to the relatively low value, the streaky rheed pattern gradually changes to spotty one
我們發現在較低的真空度下，即氧分壓處於2 10 - 4pa和3 10 - 3pa之間， lno晶格中的一個o2 -將會轉移兩個電子給兩個ni3 + ，並且移動到薄膜表面形成o2被泵抽走，從而導致鈣鈦礦結構的垮塌，其相應的rheed圖樣呈現出清晰而明亮的點，表明表面為較為粗糙的三維島狀結構。 -
Plasma ignition technique for engine is a new pattern technique, at the present some developed countries have studied plasma ignition system. ukraine have firstly used this technique in marine gas turbine and pumping station of the gas turbine used for the long distance oil transportation main from siberia to europe which increases the reliability of retrofires and extend the concentration limit of retrofires
目前，世界上幾個技術發達國家都開展了等離子點火系統的研究，尤其是獨聯體國家更是率先把等離子點火系統用於艦用燃氣輪機以及從西伯利亞到歐洲的遠距離輸油干線的燃氣輪機泵站上，使發動機的點火可靠性和點火的濃度極限得到了極大的提高。 -
The flow of every pump is inclined to be different in the same side - inlet sump and the poor flow pattern, and then the inlet condition of the pump is not good, which makes the efficiency of the pump drop and causes vibration etc. based on the theses on the hydraulic characteristic of the wenshui road pumping station in the third period shanghai disposal sewage project, the methods were discussed to improve the flow pattern of side - inlet sump, and the measures were put forward to ameliorate the flow pattern in the paper
對側向進水集水池，一般會出現同池各水泵配水不均勻，池內流態紊亂、水泵吸水條件差，繼而導致水泵效率下降、機組振動等問題。本文結合上海市污水治理三期工程汶水路泵站水力特性研究課題，探討了改善側向進水集水池水力特性的途徑與方法，提出了有效的整流、均流措施。 -
Pattern selection of dual variable - diameter wheel pumping unit
雙變徑天輪式抽油機的選型分析 -
Computation and analysis of 3 - d curved - flow of pumping station forebay and improving of the flow pattern
泵站進水彎道三維流動分析及流態改善研究 -
In city, because the occupied area of the urban sewage pumping station is usually limited, the length of the forebay is inclined to be short and the diffusion angle in flow direction is big accordingly, which causes bad flow pattern, such as backflows, vortices, etc. the bad flow pattern will make the efficiency of the pump unit drop
城市排污泵站由於條件的限制，前池一般面積較小，擴散角較大，擴散段較短，因此水流進入前池后突然擴散，流態紊亂，易行成迴流、漩渦等不良水流流態，從而影響水泵的工作性能。
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