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- A dark region or blemish, as on a polished stone. 黑斑，瑕疵黑块或黑斑，如磨光的石头上的黑斑
- A dark region or blemish,as on a polished stone. 黑斑，瑕疵黑块或黑斑，如磨光的石头上的黑斑
- The darkest region of a sunspot. 太阳黑子中的最黑暗的区域
- The sprawling dark region near picture center is Syrtis Major, with the whitish Hellas impact basin just below, in the southern hemisphere. 影像中央绵延的暗色区域是西尔蒂斯大平原，它下方位在南半球的淡色区块则是希拉斯撞击盆地。
- The dark region of the underworld through which the dead must pass before they reach Hades. 埃里伯斯山南极洲罗斯岛上的火山，海拔3796。6米（12448英尺）
- The distensible effect of a circle-shape dark region light reflection from curved liquid surface was discovered. 摘要发现了细棒润湿效应时弯曲液面上边界反射光场的圆形暗场扩张效应。
- A small blue circle centered on the ecliptic outlines the extent of the dark region of the shadow or umbra. 月食影像中央有一个蓝色小圆圈表示阴影区或是本影区。
- It is believed that the distensible effect of a circle-shape dark region is capable of real time characterization of curved liquid surface. 建立了一种利用弯曲液面边界反射的暗场扩张效应来实时测量液面特性的新方。
- To efficiently remove the limit cycles in dark region of an error-diffused halftone image, an inverse halftoning algorithm based on human visual system is proposed. 摘要针对误差分散半调图在黑灰区域的“有界循环”现象，提出了一种基于人眼视觉系统的逆半调算法。
- I groped for the light switch in the dark room. 我在黑暗的房间里摸索着找电灯开关。
- We started early in order to arrive before dark. 为了在天黑前到达，我们很早就动身了。
- Those who engage in the culture of nescient activities shall enter into the darkest region of ignorance. Worse still are those engaged in the culture of so-called knowledge. 译文：行为无知愚昧的人，会堕至最黑暗的愚昧境地；更糟的是那些培育所谓知识的人。
- Her sublimate future husband will be tall, dark, and handsome. 她理想化的未来丈夫将是身材高大，皮肤浅黑，相貌英俊。
- The thief slunk down the dark alley. 那个贼偷偷钻进黑胡同里。
- I grope for the light switch in the dark room. 我在黑洞洞的屋里摸索著寻找电灯开关。
- He felt along the wall in the dark for the door. 他在黑暗中沿墙壁摸索着找门。
- Most insect do not live in polar region. 大多数的昆虫不在极地地区生存。
- It is too dark outside to allow of walking. 外面太黑了，不能出去散步。
- This face, known as the near side, has darker regions called mares which in fact are flatter regions. 这面的月球上深色的地区,称为月海,实际上是较为平坦的区域。
- The earthquake may cause a region to fall in. 地震可以使一个地区下陷。
