The subject of this paper is how to design the circular flat diaphragm as a pressure-sensing, element in accordance with its linearity.

本文主要探讨如何按线性度设计计算测压平膜片。

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The easier level of the challenge requires flights of 90 seconds and a landing on a small, flat circular pad.

稍容易的初级挑战级别要求飞行90秒，然后在一个小型圆形平台上降落。

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Some round barns are not truly circular. They just looked that way, but really are many flat pieces put together side by side.

一些圆形畜棚不是规则的圆形，他们只是看起来是圆的。实际上只是许多平板一块接一块拼接起来的。

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The buildings, with a circular shape and a flat roof, were made of mud, sun-dried mudbricks and stone.

UNESCO: Choirokoitia