flapper

现在分词：

动词现在分词: flapping

更多词形：

动词过去式: flapped | 动词过去分词: flapped | 动词现在分词: flapping | 动词第三人称单数: flaps |

单词例句：

Place a valve keeper strip (3) over the flapper valve,

使其圆角正对着阀板，如图所示的位置。

I am the client that runs all the time, the server that works overload, the flapper that kills the bugs, the shield that guards the database.

而这发过“加班者誓言”的人，更是把生命都赌在了加班事业上的强者。

but confined his questions to the state of mathematics, and received the account I gave him with great contempt and indifference, though often roused by his flapper on each side.

六天之后，衣服才被送来，做得很差；因为他在计算时偶然弄错了一个数字，弄得衣服形都没有了。令我安慰的是，我见过的这类事太寻常了，所以也就不怎么在意。

Flapper is a young woman, especially one in the1920' s who showed disdain for conventional dress and behavior.

尤指19世纪20年代对传统的衣着和行为表示不屑的少妇。

In order to improve the reliability of servo system, a triplex electro-hydraulic servo actuator system with three torque motors, three jet flapper valves and three sets of feedback components is designed.

摘要为了提高伺服作动系统的可靠性，设计了一种三余度的电液伺服作动系统，将伺服阀的力矩马达、喷嘴挡板阀、系统的反馈元件等做成一式三份。

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

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

According to its shaft seal structure, high vacuum flapper valve is classified into GD-J rubber shaft seal type and GD-J(b)bellows shaft seal type.

高真空挡板阀按轴封结构可分GD-J型橡胶轴封和GD-J(b)型波纹管轴封两种。

flapper bracket

机器脚踏车后座