Gaussian beam is the asymptotic solution of wave equation concentred at the central ray.
高斯束是波动方程在特定射线附近的高频渐近解。
This penetrating view of the central region of the Eagle Nebula from Nasa's Chandra X-ray observatory reveals the incredible amount of star formation inside the iconic 'Pillars of Creation'.
这张有点透视效果的图是从美国宇航局的钱德拉X射线天文台获得的鹰状星云的中心地区，它揭示出传说中的“创作之柱”里包含着数量惊人的恒星。
The supernova left behind a dense central core 12.5 miles wide that was first spotted in 1999 by NASA's Chandra X-ray Observatory.
超新星爆发后留下了一个直径12.5英里的致密核心，NASA的钱德拉X射线天文台于1999年第一次观察到了这一核心。
They were accumulated in the large central vacuoles of secondary phloem parenchyma cells and secondary phloem ray cells.
这些蛋白质积累在韧皮薄壁细胞和韧皮射线细胞的中央大液泡里。
These X-ray pulses take 300 years to traverse the distance between the central black hole and a large cloud known as Sagittarius B2, so the cloud responds to events that occurred 300 years earlier.
这些X射线脉冲花了300年从中心黑洞到达了一片巨大的云团人马座B2，于是云团对300年前的事件作出反应。
Trapeziectomy is, therefore, the central element of arthroplasty, but it is a destructive surgical procedure that, to some extent, shortens the first ray and reduces the pinch strength of the thumb.
因此，大多角骨切除术成为关节成形术中的中心因素，但这是个破坏性外科过程，在某种程度上缩短了第一列骨长度，减小了拇指的捏力。
Radiation Angle and central deviation is important parameters of an X-ray directional flaw detector.
辐射角及中心偏移，是定向X射线探伤仪的重要技术指标。
Giant bubbles of gamma-ray-emitting materials surrounding the Milky Way are created by our galaxy's central black hole - and its appetite for stars - according to an international team of astronomers.
银河系周围那个饱含伽马射线释放物质的大泡泡，是由我们星系中心的黑洞——以及它那对恒星的吞噬欲——制造出来的。这是一个国际天文学家团队得出的结论。
Liquefaction necrosis of the central part of lung cancer formation, when empty, X-ray signs easily confused with lung abscess.
肺癌中央部分坏死液化形成癌性空洞时，X线征象易与肺脓肿混淆。
The crystal structure was determined by X ray single crystal diffraction, the structure is a distorted triangular bipyramid with five coordinated central tin atom.
用X射线单晶衍射测定了该配合物的晶体结构。结果表明，配合物中锡原子呈五配位畸变三角双锥构型。
The crystal structure has been determined by X ray single crystal diffraction, showing a distorted trigonal bipyramidal configuration with five coordination for the central tin atom.
通过元素分析、 红外光谱和氢核磁共振谱对其结构进行了表征。用X-射线单晶衍射测定了该化合物的晶体结构。
In some cool core clusters, re-searchers have found central X-ray cavities that are produced by AGN activity.
在冷核星系团中发现了许多中央活动星系核（AGN）活动所造成的X射线空洞，等。
The abnormal transformation of smectite clay minerals in central Junggar Basin is analyzed according to the petrographic thin section and X - ray diffraction data.
利用岩石薄片和X射线衍射资料，分析了准噶尔盆地腹部地区蒙皂石粘土矿物的不正常转化。
The abnormal transformation of smectite clay minerals in central Junggar Basin is analyzed according to the petrographic thin section and X - ray diffraction data.
利用岩石薄片和X射线衍射资料，分析了准噶尔盆地腹部地区蒙皂石粘土矿物的不正常转化。
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