这样，有90％以上的光落在第二暗环所包围的圆面积之内。
Thus more than 90 per cent of the light is contained within the circle bounded by the second dark ring.
观测到与耀斑有联系的暗环的膨胀和上升，说明新磁流浮现区与老场作用是触发耀斑的一个重要条件。
We have observed expansion and rising up of dark loops connected with flares. It shows that interaction between the new field and the old field is an important condition of flare triggering.
当太阳内部深处形成巨大的磁力环，该处将会产生井喷并突破太阳表面，从而使表面的局部地区温度下降，看上去就像一个暗斑，这就是黑子的形成。
They form where giant loops of magnetism, generated deep inside the sun, well up and burst through the surface, leading to a localised drop in temperature which we see as a dark patch.
他四处环望着暗着的书店。
它呈暗棕色，仅仅比乒乓球稍微大了一点儿，环有模糊的鬼魅般的条纹，它们好像总是不详似的。
Dusky brown things slightly larger than Ping-Pongballs, ringed with faint, ghostly stripes, they always seemed vaguely sinister.
一条暗条纹是在每次土卫十六飞过f环时产生的。
One dark streamer is created during each pass of Prometheus through the F-ring that it shepherds.
暗挖区间隧道通过采用超前探测、增设临时仰拱、袖阀管、锁脚锚管等技术措施，安全、顺利完成了北四环路和北辰桥段的施工。
By adopting some technology of advanced detection, adding temporary invert, sleeve valve pipe and lock foot bolts, the construction of the tunnel is completed safely and successfully.
西四环暗涵工程以其工程难度大、工期长成为南水北调中线工程的主要控制性工程之一。
The buried culvert under the west fourth ring road is one of the most important constructions in the South to North Water Transfer Project.
比较五种冒口工艺方案，采用边暗冒口工艺生产球铁件转动环，提高了铸件质量和经济效益。
By comparison of five kinds of riser, the paper recomends the casting process design of side-blind riser which can assure the casting quality and reduce the casting cost.
赤霉素或环剥处理分别对暗柳橙的花芽分化起阻遏或促进怍用。
Gibberellins (GA) or Girdling (GIR) treatment inhibited or promoted 'Anliucheng' Orange flower-bud differentiation respectively.
南水北调北京西四环暗涵施工中采用了浅埋暗涵施工法。
The method of culvert-undercutting with shallow overburden is adopted to construct Beijing Xisihuan underground culvert of South-to-north Transfer Project.
图片由卡西尼的小角度摄像机拍摄，显示了环的暗面。
It was taken by the spacecraft's narrow Angle camera and shows the dark, or unlit, side of the rings.
图片由卡西尼的小角度摄像机拍摄，显示了环的暗面。
It was taken by the spacecraft's narrow Angle camera and shows the dark, or unlit, side of the rings.
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