词语大全 observation plane中文翻譯

Posted 2022-08-25 矢量

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词语大全 observation plane中文翻譯

The us has lost predator observation planes to hostile fire before , but rarely , if ever , over iraq
美國空軍在伊拉克上空被擊落的事件以前幾乎沒有發生過

It can give vector of stress , and break factor and direction vector of tensive crack and shearing crack in the special observation planes ( for examples , in a stratal surface which is fluctuant in depth )
軟件可視化包括：空間應力矢量(大小和方向) 、裂縫性態(張裂縫和剪裂縫發育程度及其方向矢量)在特定觀察面(如沿起伏的地層面)上的展示。

Abstract : in this paper ， a ray - optics analysis is performed to investigate the asymmetry of dual beam scanning field produced by a rotating polygon . some basic equations of dual beam scan are derived ， such as ， the position vector for the incident point ， the scalar expression for reflected ray ， scan pattern on observation plane ect . the far - field asymmetry of the scanning field has been discussed
文摘:應用幾何光學理論研究了多光束轉鏡掃描場的非對稱性，導出多光束掃描入射點位置矢量、反射線標量表達式、觀察面上的掃描軌跡方程，并研究了掃描遠場的非對稱性。