查询词典 occultation

Serendipitous occultation is currently the only way to study the comet-size Trans-Neptunian Objects.

中文摘要外海王星天体(Trans-Neptunian Objects ，TNO)的探索和认识，是现代天文学家很感兴趣的一个课题。

Binary systems are not rare in a galaxy, not worthless objects either for a distant observator, for they will sometimes perform a astronomical phenomenon called occultation, that one star's radiance covers the other and makes the luminance of the whole system change regularly.

双恒星在星系内并不少见，对于遥远的观测者来说也算值得注意的对象，因为它们会发生互掩，一颗星的光芒盖过另一颗的，从而导致整体的亮度时明时暗，周期变化。

After a long period of occultation he again showed his face at the club.

长期隐匿之後他又在俱乐部露面了。时常，有时，不时

From Greystones, County Wicklow, Ireland, her small telescope allowed her to follow the accompanying lunar occultation as a brilliant Venus disappeared behind the Moon's dark edge, then reappeared along the bright lunar limb.

通过使用位于爱尔兰维克娄县格里斯通的小型望远镜，她得以追踪逐渐消失在月球黑暗阴影中的明亮金星，然后金星又出现在了月球的明亮部分一侧。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。