查询词典 valve control

Cardiotomy suction relief valve was applied in decompression group and not in control group during ECC.

60例室间隔缺损患儿随机分为减压组和对照组，每组30例，减压组体外循环中心内吸引应用减压阀，对照组体外循环中心内吸引不用减压阀。

Conant's control valve actuators are lightweight and compact, and are specifically designed for

Conant公司的控制阀执行机构质量轻、体积小，是专门设计用来对双通、三通、四通、五通精密

At the one-cell stage, each embryo was injected with gradient doses of 2-8ng MO. The control morpholino, was purchased from Gene-Tools.To test the knockdown effectiveness of the morpholino, the tbx2-EGFP (enhanced green fluorescent protein) construct was generated. And coinjection of morpholino with mRNA tests its specificity of the morpholino. Overexpression of tbx2 via mRNA microinjection helps us understand gaining function of tbx2. Results The tbx2-EGFP construct tests the knockdown effectiveness of the morpholino. Zebrafish embryos lacking tbx2 function have defects in cardiac contractility, rhythm and morphology in a dose-dependent manner. The embryos with c-MO are normal in development. Coinjection of morpholino with mRNA rescue the phenotype of tbx2 knocking down. The phenotypes include pericardial edema, hypogenetic ventricle, dilation of atria, arrhythmia, bradycardia, asystole, abnormal atrioventricular canal, aberrant valve and blood regurgitation.

结果荧光蛋白融合标记实验验证了tbx2-MO可以很好得阻抑斑马鱼胚胎tbx2的表达，tbx2-MO组胚胎在心脏收缩性、节律和形态学发生上出现了异常，心脏畸形随着注射剂量的增加而出现比较一致的表型，而c-MO组胚胎没有出现明显的畸形；tbx2-mRNA和tbx2-MO的共注射减少了tbx2-MO胚胎心脏畸形的发生率及减轻了心脏畸形的程度，验证了所设计合成的tbx2-MO对tbx2基因的抑制作用具有特异性；tbx2-MO组胚胎心脏缺陷包括心室发育不良、心房扩张、房室管和瓣膜异常以及心率缓慢、心律不齐、心脏停搏、血液返流等，并根据心脏发育异常的程度分为轻、中、重度畸形组tbx2-mRNA基因过表达胚胎没有见到心腔的形成。

The results gained from MACONP are indentical with that of RETRAN02/MOD2 program. Then, Incontrollable Control Rod Withdrawal ATWS , Loss Of Offsite Power ATWS , Turbine Trip ATWS and Loss Of Feedwater ATWS are analyzed emphatically. Based on the LOFW-ATWS analysis, the sensitivity analyses of the influence of some conditions on ATWS process are conducted, such as pressurizer relief valve blocking, putting pressurizer spray in, no turbine trip and decrease of moderator reactivity coefficient. The simulating results agree well with corresponding results of RELAP5/MOD2, both analyses consequences are consistent in the main.

本论文首先应用MACONP程序分析了秦山核电站的汽轮机保护停车瞬态，包括&压力有控制&和&压力无控制&两种情况，所得结果与RETRAN02/MOD2的计算结果吻合；然后着重分析了该电站的控制棒失控提升ATWS、失去厂外交流电源ATWS、汽轮机保护停车ATWS和失去主给水ATWS，并在LOFW-ATWS分析的基础上就稳压器释放阀卡死、稳压器喷淋投入、汽轮机不脱扣和慢化剂反应性系数减小等对ATWS进程的影响作了敏感性分析，仿真结果与RELAP5/MOD2的仿真结果符合良好，对结果进行分析所得到的分析结论也基本一致。

Incorporated in the injection train is a pneumatically operated flow control valve, which controls the steam flowrate.

蒸汽 喷射器前有一个气动控制阀，它控制着蒸汽的流量。

The paper attempts to design and development a new type of hydraulic pump. It is the design of combining the advantages of sucker rod pump and rodless botttom hole pump, without pumping rod,and depends on the hydraulic system on the ground providing the impetus. The paper uses the pump Swabbing Principle to design the main parts of the pump structure and size, analyses and calculates the up down stroke of the piston and the switching process of pump valve, uses the finite element method to analyse the main force summing element and check intensity, and designs a ground hydraulic control system to match it. Considering the need of deep mining, salvage equipment is designed. The design shows that there is feasible and reliable to realize the exploitation underground using the new hydraulic pump. The design idea in this paper enlightens the rodless botttom hole pump production in the future and other similar issues.

本文尝试一种新型液力泵的设计和开发，它的设计思想是结合有杆泵和无杆泵各自的优点，取消抽油杆，依靠地面液压系统提供动力，本文从抽油泵抽汲原理出发，设计了抽油泵主要部件的结构和尺寸，对上下冲程柱塞的运动规律和泵阀启闭过程进行分析和计算，使用有限元法对主要零件进行了受力分析和强度校核，并设计与之配套使用的地面液压控制系统，考虑深井开采的需要，一并设计了打捞装置，为理论上实现了这种新型液力抽油泵井下开采的可行性和可靠性做了一些基础的工作，本文的设计思路对今后无杆泵采油等类似问题的研究做了有益的尝试。

Electrolyte dried, cathode sulphation, low voltage constancy, thermal out of control for valve regu lated lead acid battery in using were discussed, they were important for design and using conditions of VRLAB as well as VRLAB manufacturing process.

阀控式铅酸蓄电池在使用过程中存在电解液干涸、负极板硫酸盐化、电压均一性差、热失控等问题，这些问题除了和阀控式铅酸蓄电池的设计与使用条件有关外，还和阀控式铅酸蓄电池的生产过程有很大关系。

Watts No. P3 Flow Control valve is designed to limit the flow of water to equipment and is used for tankless heater installations.

美国瓦茨型号P3流量控制阀专用于限制流往用水设备的水流量，或用于即热式热水器的安装。

World-renowned expertise used in the water industry, the main axial flow control valve manufacturer VAG companies from Germany, the German ERHARD Corporation, the United States POLYJET Inc., CLA-VAL Company, Israel INBALL company.

世界著名的专门应用于水行业的轴流式控制阀厂商主要有德国VAG公司、德国ERHARD公司、美国POLYJET公司、美国CLA-VAL公司、以色列INBALL公司。

These works provide the base for the research on two major types of microfluid control systems which are valve controlled and pump controlled systems.

这些工作为阀控和泵控这两种主要形式的微量流体控制系统研究打下了基础。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。