查询词典 fluid dynamics

The structure of maize fluid hilling device was determined and air blowing agitation was utilized to reduce the seeds settlement and damage.The pressure control system was set to maintain fluid metering pressure to avoid uneven seed metering caused by the decrease in height and pressure of the fluid in the chamber.Siphon principle was applied to solve the problem of seed settlement and the hammering function in the siphon tube was utilized to avoid seeds blocking during metering.

完成了玉米流体穴播装置结构方案确定，采取压气搅拌混合方式，解决种子沉积和伤种问题；设置稳压控制系统，充分利用压缩空气来维持排液压力，克服播种过程中排种不均问题；利用虹吸原理解决种子沉积堵塞，并利用虹吸排种管中的锤击原理解决排种过程中的堵塞。

Amniotic fluid replacement in treating Ⅱ～Ⅲ° meconium-stained amniotic fluid during labor which can improve meconium-stained amniotic fluid, intrauterine fetal anoxia and acidose, and preventing meconium aspiration syndrome decrease asphyxia neonatorum and acidose cesarean section rate.

羊水置换术在产时羊水Ⅱ～Ⅲ°胎粪污染的治疗中有显著的疗效，可以明显改善胎儿宫内羊水污染，纠正胎儿宫内缺氧及胎儿酸中毒有效预防胎粪吸入综合征，减少新生儿窒息及新生儿酸中毒，降低剖宫产率。

In fact, there is little pump of the fluid loss, which makes the operation of pumps can not achieve 100% efficiency, as these fluids are used to on both sides of bearing and gear lubrication, and the pump body is also not possible with no gap, it can not be so that 100% of fluid discharged from the export, so a small amount of fluid loss is inevitable.

实际上，在泵内有很少量的流体损失，这使泵的运行效率不能达到100％，因为这些流体被用来润滑轴承及齿轮两侧，而泵体也绝不可能无间隙配合，故不能使流体100％地从出口排出，所以少量的流体损失是必然的。

RESULTS:The levels of PGE and cAMP in fever rabbits' cerebrospinal fluid was rised abnormally(P.01), AFMI can lower the abnormally rised levels of PGE and cAMP in the cerebrospinal fluid(P.01), and the use of AFMI ahead of schedule can inhibit the synthesis and release of PGE and cAMP in the cerebrospinal fluid.

结果：发热家兔脑脊液PGE、cAMP含量异常升高(P.01)，AFMI可显著降低发热家兔脑脊液中异常升高的PGE和cAMP的含量(P.01)，最佳剂量为26.25 g*kg－1，提前应用AFMI，可阻抑感染家兔脑脊液中PGE、cAMP的合成释放。

The histamine in the particles will increase the transmission capacity of capillary and the velocity of the tissue-fluid flow and the superficial shear stress of related mast cell will be increased, which will once again activate mast cells to discharge active substance. Part of the active substance will be absorbed by capillary and the other part will be passed by tissue fluid to a remote place and it will activate the mast cells and the capillaries there. The directional path of the tissue fluid is approximately the same as the meridian, which forms the phenomenon of feeling-along-meridian on macroscale.

脱颗中的组胺等物质会引起毛细血管壁通透性的增加，进而引起组织液流动速度的增加和肥大细胞表面的切应力加大，这样会进一步促进肥大细胞的激活，从而释放更多的活性物质，这些物质一部分被静脉端毛细血管吸收进入血液，另一部分则随着组织液的定向流动向远处，并进一步刺激远处的毛细血管和肥大细胞，而组织液的定向流动途径和传统的经络线走向基本吻合，在宏观上就构成了循经感传现象。

The visco?-elastic fluid hydrodynamic theory was applied to the wear-resistance experiment on sucker rods.The values of normal stress in suck string generated by visco?-elastic fluid and eccentricity brought out by sucker string were measured quantitatively.The partial abrasion of sucker string and tube in oil well was caused from the normal stress of visco?-elastic fluid.A module for bending analysis of sucker rod in cross direction and wire direction was developed.

大庆油田实施聚合物驱油以后，出现了抽油杆受力状况恶化、抽油杆柱严重偏磨的现象，为此开展了粘弹性流体水动力学理论和试验研究，得出了粘弹性流体在抽油机井筒内的流动规律及对抽油杆柱法向应力的影响规律，定量测出了粘弹性流体对抽油杆柱的法向应力值和抽油杆柱产生的偏心率。

Through the dynamic simulation test of the indoor autoclave, the law of the influence of oxygen content, drill fluid temperature, drill fluid flow velocity and the salt concentration of the drill fluid on the oxygen corrosion rate of the S135 drill pipe steel was studied separately in order to investigate the relatio...

为研究腐蚀因素与腐蚀速率的关系，通过室内高压釜动态模拟实验，分别研究了钻井液中含氧量、钻井液温度、钻井液流速和钻井液盐浓度对S135钻杆钢的氧腐蚀速率影响规律。

vanced a new approach to measure the coefficient of viscosity with the method of falling balls , and explained the movements of falling balls of the same diamters in viscose fluid in tubes of different diameters and falling bahs of different diameters in viscose fluid, as well as the whole process of movements of falling balls in viscose fluid.

文摘：给出了一种落球法测液体粘滞系数的改进方法；并对小球在不同管径内的粘滞液体中的下落运动、不同直径的小球在粘滞液体中的下落运动以及小球在粘滞液体中的整体运动过程等进行研究。

Compressible fluid with non-return valve Although the use of compression fluid valve pipeline aims to reduce the impact valve flap to a minimum, but can not be compressed fluid selection method with a similar valve to Flanged Ball Check Valves choose.

压缩性液体用止回阀尽管压缩性流体管路选用止回阀的目的在于使阀瓣的撞击减小到最小程度，但可以根据不可压缩性流体用止回阀的类似选择方法来进行选择。

Compressible fluid with non-return valve Although the use of compression fluid valve pipeline aims to reduce the impact valve flap to a minimum, but can not be compressed fluid selection method with a similar valve toFlanged Ball Check Valves choose.

压缩性液体用止回阀只管压缩性流体管路选用止回阀的目的在于使阀瓣的撞击减小到最小水平，但可以按照不成压缩性流体用止回阀的近似选择方法来进行选择。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。