ring focusing 中文意思是什麼
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We can only detect the brightening of the occulted object by the " focusing " action of the gravitation lens. this effect is called microlensing. theoretically, einstein ring is formed whenever occultation happens
由於黑洞的強大引力,它會吞噬伴星上的物質,但這些物質並不會直墮進黑洞內,而是以螺旋狀軌跡卷進去,形成一個旋渦盤,所以科學家稱之為吸積盤。 -
All this can be a fundament for deeper investigate phased arrays. at the same time, the concentric - ring transducers are also analyzed. it can realize point focusing on its axis
本文推出了平面陣的空間聲壓分佈表達式,並研究了平面陣的幾何尺寸對聲波聚焦效果的影響,為相控陣的進一步研究提供了理論依據。 -
Support the camera on the palm of your left hand so that you can turn the focusing ring “ with your fingers ”
請把相機置於您左手掌上,便於您能用手指旋轉對焦環。
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