f number n. 焦距比数 f n. 1.字母f 2.(以态度、言语、抚摸)表示爱抚 3.(演奏或歌唱)强,强有力 F$ 飞枝元为Fiji dollar的简字。南太平洋的一国,大部份领土为飞枝群岛,原为英国属地。此为其货币单位。 F n. 字母F f/ 【缩写】 =relative aperture of a lens 照相机镜头的相对孔径 f/f ...
F值是一個比例，而且是關於焦距的比例，所以它叫Focal Ratio，至今在天文光學中依然叫焦比，不叫光圈。...
f-integral f-layer f-moderecord f-number f-numberf f-ratios f-rule f-spot f-statistic f-stop f-sumrulef f-synchronisation f-type iron tower bol f faa free from all ave fac---fast a fa free alongside fa free alongsideship faq fas fas pricefree alongsi f aikido in japan fandam ...
finite element analys finite element numeri finite fields finite impulse respon finite number finite series finite verbal operato finite volume finite-state machine finitebasis finitesubset fink tank finke finkles lava dredger finland g of finn hudson finnair masters finnair oy ay fin finned surface e...
One of these properties is the f-number of the lens, which is simply the ratio of the focal length to the diameter of the lens. Aperture of lens Answer and Explanation: Determine the f-number, {eq}N {/eq}, of the lens. We do this by dividing ...
1) f-number光圈号数2) diaphragm 光圈 1. In making a video recording, the control of diaphragm is actually the control of the picture exposure and its shadow adjusting. 在摄像艺术创作中,对光圈的控制实际上是对画面曝光和产生不同影调的控制。
4. the 6th letter of the Roman alphabet 行业词典 医学 focal length焦距frequency频率 物理学 数f-number 即光圈数。 生态学 噪声1/f noise 广泛存在于大自然的随机过程,其频谱密度函数 S ( f )与频率 f 的关系近似于: S ( f )∝1/ f 。
Discover the OPPO Reno11 F 5G smartphone, equipped with a 64MP Ultra-Clear Main Camera, 67W SUPERVOOC Flash Charge, MediaTek Dimensity 7050, and ColorOS 14. Capture stunning portraits, enjoy fast charging, and seamless multitasking with this next-level s
Explore the cutting-edge features of the latest smartphone, including a 64MP Ultra-Clear main camera, 67W SUPERVOOCTM Flash Charge, MediaTek Dimensity 7050 processor, and seamless connectivity with Microsoft Phonelink. Upgrade to unparalleled performance
In this paper, a low F-number freeform off-axis three-mirror system with rectangular field-of-view (FOV) is presented, and the system has an integrated configuration that can be aligned with ordinary methods. The initial structure is solved analytically, and the optimization process is described...