hover fan 中文意思是什麼
hover fan
解釋
墊升風機-
The nervous excitement of which we speak pursued valentine even in her sleep, or rather in that state of somnolence which succeeded her waking hours ; it was then, in the silence of night, in the dim light shed from the alabaster lamp on the chimney - piece, that she saw the shadows pass and repass which hover over the bed of sickness, and fan the fever with their trembling wings
瓦朗蒂娜睡著的時候更準確地說是在她醒來后的那種半醒半睡狀態中她仍然處于亢奮狀態那時，夜深人靜，壁爐架上那盞乳白色燈罩射出了昏暗的光線，在這寂靜和昏暗中，她看見那些影子在病床上空一一走過，用它們顫抖的翅膀煽動寒熱。 -
In this paper, the major subject investigated is the ducted fan vertical take - off and landing ( vtol ) uav. compared with normal fixed - wing uav, it has so many strong points such as be convenient to take - off and land, good adaptability and long hover time. we analyze and summary information of foreign uavs, then calculate the figure dimension of our uav, and draw the uav structure configuration and the outside view drawing of three dimensional structure
本課題的研究對象是涵道風扇式垂直起落無人機，與一般的固定翼無人機相比，它有著起落方便、適應性強、可以在空中長時間盤旋等優點，本文通過對相關飛行器資料的分析總結，給出了無人機的大體結構尺寸，並畫出了無人機的結構布局圖和三維結構外觀圖。
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