flapper

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When the rubber flapper is compromised, it allows water to run out of the drain causing the toilet to constantly refill.
当橡胶挡板达到挡水极限，水就会从排污口流出，导致马桶不停地自动冲水。
The problem is usually caused by water slowly leaking from the cistern into the bowl because of a worn-out flapper valve.
快速解决方法——问题可能是由于挡板阀坏掉，水从蓄水池里滴漏到马桶。
Check toilets for silent leaks by putting a few drops of food coloring in the tank; if the color shows up in the bowl indicating a leak, fixing it may be as simple as replacing the toilet’s flapper.
检查厕所是否有无声漏水，在水箱中滴几滴食品色素，如果马桶中的水有颜色表明水箱漏水，可能只需简单地更换阻水阀就能修好。

Soon after, with the advent of war and then the streamlined flapper look, feather prices crashed.
FORBES: Magazine Article
Steichen preferred clear images, stark lines, interesting angles and a strong independent woman, standing at the center of the frame, hands on her hips, in a short flapper dress and flashing a sardonic smile.
FORBES: Magazine Article
Hanwell Snr nudged Hanwell in his gut, and Hanwell felt strongly the implicit insult to his own mother, who still lived, and still wore her flapper curls—white now—close to her forehead, and the same heavy cloche felt caps and Harold Lloyd glasses, perfectly round and thick-rimmed.
NEWYORKER: Hanwell Senior

in the 1920s, a fashionable young woman, especially one showing independent behaviour

A flapper was a young woman in the 1920s who dressed or behaved unconventionally. (2020)

挡板
Based on converting principle of nozzle-flapper structure, it uses a piezoelectric ceramic composite plate as actuator. Thanks to the breakthrough in principle, its structure is simple and it's easy to control.
压电式电气转换器是对大连理工大学薄膜式电气转换器的改进，它利用喷嘴—挡板机构的转换原理，采用压电陶瓷复合圆盘作为挡板的微动执行机构，突破了电—气转换装置机械结构的传统模式，结构简单，易于控制。
农业科学
舌网衣