limiting flow 中文意思是什麼
limiting flow
解釋
極限流-
Quinic acid, used shikimate pathway in e. coli, it is necessary to extend metabolic pathway by introduction of a heterogenous gene qutb into the host cell. double specific enzyme genes arog, qutb or three ones arog, qutb, arob were co - expressed in a single plasmid pbv220 to improve the enzymes " rate - limiting reactions. modifications of e. coli chromosome by both disruption of the arod gene and directed - site insertion of the arob gene resulted in the change of carbon flow redirected into the quinic acid biosynthesis branch
利用大腸桿菌莽草酸途徑合成新的代謝物奎尼酸，須在宿主細胞引入異源酶基因擴展代謝途徑；串聯表達酶基因，同時適量增加不同種屬的多個關鍵酶酶量，改善限速反應；利用同源重組進行基因整合和基因破壞，改造染色體結構定向改變微生物代謝途徑；目的是將碳代謝流最大程度的引向奎尼酸生成的方向。 -
In different in terne die travel, the metal flow characterize in warm extrusion forming processes and the affection for the flow of metal stage which made by the difference between the blank bottom altitude and the axial direction limiting size in warm extrusion forming technique have been analysed we have gotten the equivalent strain field and the velocity field and other field variable that the blank in different in terne die travel and the die travel - load curve. at the same time, we have analyzed the contributing factor for the oil pump stator forming process optimized and achieve thereasonable die parameter for the war m extrusion forming finally, the optimized technics parameters were used into pilot production, then the qualified oil pump stator forging were produced, the analog results were compared with those of pilot production
論文具體分析研究了不同成形工藝過程中金屬流動的特點，並對不同凸模行程下溫擠成形過程中的金屬流動特點、坯料連皮厚度（底部高度）與溫擠壓成形工藝中的軸向界限尺寸的差值對金屬變形階段的影響進行了分析，獲得了坯料在不同凸模行程下的等效應變場、速度場等場變量及凸模行程-載荷曲線，同時對油泵定子成形過程的影響因素等進行了分析，優化並獲得了合理的溫擠成形工藝及模具參數。最後，利用模擬優化獲得的各項工藝參數進行生產實驗，得到實際生產出的合格油泵定子件，並將模擬結果與生產實驗結果進行比較。 -
Distinct mankind ' s effect of the 60 ’ s, because of greatly opened up strategy implementation in the west in the near future, retreating the straw and limiting to pasture and usage of trickle irrigation, that each steps such as above and so on wholly shall benefit to the farming water amount to be saved, thereby add into the amount of flow in lake
不同於上世紀60年代的人類活動作用的影響，近期由於西部大開發戰略的實施，退地還草、限制放牧、滴灌農業的推廣等措施都將有利於流域農業耗水量降低，從而增加入湖徑流量。這一階段湖泊水面急劇增加是氣候干濕變化的自然現象，與農業節水因素沒有顯著的關系。 -
This paper discusses the ability of avoiding maximal power flow of quadrilateral impedance relay and round impedance relay in detail and puts forward the setting principle and setting method of load limiting resistor of backup distance protection
本文對四邊形和方向圓特性阻抗繼電器躲線路最大潮流的能力進行了詳細分析，提出了距離保護負荷限制電阻的整定原則和整定方法。 -
The flow characteristics, distributions of current density and chemical components, and the performance of these two different designs are calculated and compared. the flow and mass transport characteristics are analyzed in detail, which indicate that strong forced convection is produced in the interdigitated flow field, which consist of dead - end gas channel that force the gases through the porous electrodes. results of comparison show that forced convection induced by the interdigitated flow field in the diffusion layer effectively enhances mass transport of reactants and products, thus leading to a higher cell performance and the limiting current density
在傳統流道設計的pemfc中，反應物從流道到催化層的供應和生成物從催化層到流道的排出主要是以擴散為主，而在交叉梳狀流道設計中，以流動帶動的對流傳遞則占據了主導地位，而且這種以對流為主的傳遞機理大大提高了反應物和產物傳遞速率，從而有效地改善了電池的極限電流密度和極化性能等特性。 -
After decades of progression, some of these atheromatous plaques may rupture and ( along with the activation of the blood clotting system ) start limiting blood flow to the heart muscle
在發展的階段，一些附著在血管壁上的粉瘤會破裂（隨即激發了血液的凝結功能）開始限制血液流向心肌。 -
The three basic steps are as follows : firstly, the flow field is computed. secondly, the droplet trajectory equation is solved in order to determinate the limiting droplet trajectories and local collection coefficient. thirdly, a new iced shape is defined according to ice accretion model
其基本步驟一般分三步：計算物體的繞流流場；求解水滴軌跡方程以確定極限水滴軌跡和收集系數；根據冰增長模型來確定新的結冰翼型形狀。 -
Furthermore, under hypoxic conditions, a pulmonary - specific type of vascular remodeling called pulmonary arterial remodeling occurs that is characterized by thickening of the vessel wall with a concomitant reduction in the vessel lumen area, thereby limiting blood flow
此外，在低氧的情況下，一種稱作肺動脈重建的特異性血管重建類型的發生是以血管壁增厚並伴發血管腔區域的減少為特徵的，因此限制了血流。 -
The research on vrp before has too much limiting factor, so it is hard to implement. according to operation flow in fact, we put forward a mode of distribution optimization problem base on layers, then analysing subproblems in mode, constructing mathematic mode and giving algorithm
傳統的vrp問題研究，多把問題限制在某一較小的范圍內，本文結合實際配送業務流程，提出了基於層次的配送優化調度求解模型，分析模型中各子問題，建立數學模型，給出求解演算法。
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