flapper

noun

1. （20世纪20年代不受传统拘束的）随意女郎
   a young woman in the 1920s who wore fashionable clothes, had short hair and was interested in modern music and new ideas

1. GD high vacuum flapper valve is used to put through or cut off the airflow in vacuum pipeline.
   GD型高真空挡板阀用于接通或切断真空管路中的气流。
2. The priest wears a necklace of skulls around his neck and a sword around his waist and he is carrying a horsehair flapper in his right hand and a sutra in his left hand.
   僧人脖子上戴着骷髅串成的项链，腰上配刀，右手执佛尘，左手持经卷，举步向前。
3. The Mock Turtle sighed deeply, and drew the back of one flapper across his eyes. He looked at Alice, and tried to speak, but for a minute or two sobs choked his voice.
   素甲鱼深深地叹息着，用一只手背抹着眼泪，瞧着爱丽丝想说话，可是有好一阵子泣不成声。
4. The creation of the American Flapper is a theme that not only fascinates Fitzgerald but also his readers and critics.
   美国新潮女郎的创作不仅是作家本人也是使读者和评论家着迷的主题之一。
5. According to structural characteristics of a flapper valve, flapper valves, butterfly valves, ball valves, diaphragm valves, angle valves, through the valve, three-way valve.
   根据结构特点有挡板阀、插板阀、蝶阀、球阀、隔膜阀、角阀、直通阀、三通阀。
6. Design and Application of Hydraulic System for Billet Cushioning Flapper
   管坯定尺缓冲挡板液压系统的设计及应用
7. Research on Static Flow Characteristics of Twin Flapper-nozzle Servo Valve
   双喷嘴挡板电液伺服阀流量特性的研究
8. The results show that the nozzle flapper valve has wide pressure control performance, good linearity, and high response speed. And theoretical basis is presented to further introduce the GMA nozzle flapper valve into electro-hydraulic servo valve.
   结果表明，基于超磁致伸缩转换器喷嘴挡板阀，具有较宽的控制压力特性，良好的线性度，较快的响应速度，为进一步将其应用于两级电液伺服阀提供了设计和试验依据。
9. Nozzle-Flapper Servo-Valve Driven by Piezoelectric Bimorph
   双压电晶片驱动喷嘴挡板式伺服阀
10. Experimental results also indicate that the novel piezoelectric type nozzle flapper hydroelectric servo valve has advantages in simple structure, low cost and high precision, it can meet the need of high precise control system in the recent period.
    新型压电晶片型喷嘴挡板式电液伺服阀结构简单、成本低、精度高，可以满足精密控制系统的要求。
11. The paper describes the common faults of the two stage electro-hydraulic servo valve in dual-nozzle flapper, force feedback type, and its influences on the valve characteristics. Using classic analysis method and modern analysis method, the fault analysis is carried out.
    文章阐述双喷嘴挡板力反馈式两级电波伺服阀的常见故障及其对阀性能的影响，并以经典分析方法和现代分析方法对故障进行探讨。
12. Selection method of optimization parameter for hydraulic power mechanism operated by single nozzle flapper valve
    单喷嘴挡板阀液压动力机构最佳参数的选择方法
13. Taking DDC flow and direction valve as the tractive load, this paper investigates the selecting method of the optimization parameter for hydraulic power mechanism operated by single nozzle flapper valve, and puts forward the calculation formula and program of the optimization parameter.
    本文以直接数字式流量阀和换向阀为拖动负载，对单喷嘴挡板阀液压动力机构最佳参数的选择方法进行了研究，提出了最佳参数的计算公式和计算程序。
14. Experiment results show that bimorph actuator has better linear repeatability between voltage and displacement and has bigger displacement and better dynamic characteristic. Herby, bimorph actuator is suit to act as pre-stage amplifier of nozzle flapper hydroelectric servo valve.
    实验结果表明，压电双晶片执行器输入电压与输出位移之间的线性关系及重复性较好，能够输出足够大的位移并具有较好的动态特性，满足做喷嘴挡板伺服阀前置级液压放大器的条件。
15. The structure and principle of the GMM actuator and the new nozzle flapper servo valve with GMA were presented. Its basic parameters were calculated and pressure-flow equation was established.
    介绍了GMA喷嘴挡板阀的结构组成和工作原理，设计计算了GMA喷嘴挡板阀的基本参数，推导出了GMA喷嘴挡板阀的压力-流量特性方程。
16. Two common methods of thermal deformation compensation of the GMM ( Giant Magnetostrictive Material) actuator, the compulsive cooling methods and the thermal compensation methods, were introduced. And the structure and work principle of the GMM actuator and the nozzle flapper valve were analyzed.
    介绍了GMM（超磁致伸缩材料）转换器热变形抑制的常用两种方法：冷却和补偿方法，分析了GMM转换器及喷嘴挡板阀的结构组成和工作原理。
17. Research on the Nozzle Flapper Servo Valve Driven by GMM Actuator
    基于GMM转换器喷嘴挡板伺服阀的研究
18. Control System Design for a New Type of Double Nozzle Flapper Valve
    一种新型双喷嘴挡板阀控制系统设计
19. The structure and principle of the GMM actuator and the new nozzle flapper servo valve with GMA are presented; its features and key techniques such as temperature compensation, pre-pressure exertion and bias magnetic excitation are discussed, and the dynamic mathematic model is established;
    提出基于GMA喷嘴挡板伺服阀的新结构，研制了GMM电-机械转换器及其喷嘴挡板伺服阀，分析其结构特点与需要解决的关键技术，建立动态数学模型。
20. Study on a Nozzle Flapper Gas Valve Based on Piezoelectric Stacks
    一种基于压电堆驱动器的喷嘴挡板式气体控制阀的研究
21. Control pressure characteristics of nozzle flapper valve based on GMA
    基于超磁致伸缩转换器喷嘴挡板阀的控制压力特性
22. Experimental study of the force characteristics of flapper-and-nozzle valve s
    喷嘴-挡板式液压控制元件力特性的实验研究
23. Piezoelectric type nozzle flapper valve and its control method
    压电型喷嘴挡板阀及其控制方法研究
24. A new nozzle flapper type of mechanical-hydraulic servo valve New Nozzle of Diffusion Pump
    新型喷咀档板式机液伺服阀一种新型的扩散泵喷咀
25. Research on Characteristics and Design Parameters of Nozzle Flapper Servo Valve Based on GMM Actuator
    GMA喷嘴挡板阀参数设计及特性研究
26. Heat input and input rate are effected by gas pressure and effective flow area of gas flapper valve.
    热负荷和热强度受煤气压力和燃气阀有效流通面积等参数的影响。反之，它也影响频率、过剩空气系数、燃烧室平均压力、一氧化碳排放量及燃烧稳定性。
27. Analysis of tensile strength of flapper teeth of valvular cardan shaft
    瓣形万向轴瓣齿的拉伸强度分析
28. Finally, the visual simulations of flow field inside valve and nozzle flapper are accomplished with software when spool was stationary. First, the simulation of flow field inside main valve of dual-nozzle-flapper electro-hydraulic servo valve is accomplished with software.
    最后，在阀芯固定不动的状态下，对流体在阀体及喷嘴挡板内部的流动状态进行了可视化仿真。首先，运用仿真软件对双喷嘴挡板电液伺服阀主滑阀内部流场进行模拟仿真。

noun

1. a young woman in the 1920s who flaunted her unconventional conduct and dress