| 1. | The effect of mesh - addition on the turbulence spatial structure of drag - reducing flow 添加筛网对减阻流体湍流空间结构的影响 |
| 2. | By sucking water out of the ground and evaporating it from their leaves the trees reduced flow by half 藉著将水汲出地表并从叶面蒸发,树木减少了一半的迳流。 |
| 3. | Based on the detailed analysis of the computational results , the redesigning schemes are presented to reduce flow separation and increase pressure ratio and efficiency 在计算分析的基础上提出减小流动分离、增加压比和效率的改型方案。 |
| 4. | Future studies are required to determine the mechanisms for the persistently reduced flows in healthy infants born prematurely , as well as to evaluate the effects of even greater prematurity on lung growth , " they write 今后的研究需要确定健康早产儿持续性呼气量减少的机理和估计早产对于肺生长的影响。 ” |
| 5. | After the diversion , the nullah no longer received discharges from livestock farms , but the diversion did lead to significantly reduced flow , lowering the nullahs ability to dilute or disperse pollutants 虽然改道后锦锈花园明渠的禽畜废物污染量有所降低,但由于流量大幅减少,削弱了明渠稀释和消散污染物的能力。 |
| 6. | Their downcuting velocity accelerates except luohe river round luochuan . the erosion velocity of weihe river round tianshui and jinghe river round binxian reduced , and the lateral erosion velocity of luohe river round luochuan reduced . this may be due to the reduced flow 天水渭南镇段渭河、彬县段泾河的侵蚀速率呈脉动式减小,秦家河段洛河侧蚀速率逐渐减小,这可能与河水流量随时间推移逐渐减小有关。 |
| 7. | In this paper , on the basis of the analysis of gear pimp working principle , the mechanism of flow pulsation and methods of reducing flow pulsation are pulsation are studied . the computing formula of transient flow rate and the coefficient of flow pulsation are deduced . the relationship between the gear pump flow pulsation and the construction parameters of the gear is studied 本文在齿轮泵工作原理和流量脉动产生机理的基础上,首先从理论上推导了齿轮泵瞬时流量和流量脉动系数的数学模型,分析了齿轮泵的输出流量脉动与泵齿轮各结构参数之间的关系,并对某型齿轮泵进行仿真分析研究,给出了齿轮泵的流量脉动分析结果。 |