查询词典 minor planet

Names become official when they are published in the Minor Planet Circulars .

当名称发布在MPCs上时，命名才正式生效。

A good guide to minor planet photometry is available from Brian Warner .

这里有个很好的小行星光度测量指南，作者是Brian Warner。

Anyway, before the minor planet arrives, let me give you a brief introduction. Later, when it comes into view you won't find it so unfamiliar.

总之，趁著小行星没有到来之前，我先把它的故事简单地向大家介绍一下，待会看到它，你们就不会陌生了。

It can be time-consuming to replace the preliminary measures, particularly now that observations get published in the mid-month Minor Planet Supplements that are issued weekly.

不断的更改初步测量数据对我们来说是非常耗时间的。现在观测报告在每月月中发表于每周出版的小行星增刊上。

This guide is intended for those observers interested in undertaking an astrometric CCD-observing program of minor planet and/or comets.

本指南提供给那些用CCD拍摄小行星和/或彗星并打算对其进行天文测量的观测者们。

When there is no trailing of the minor planet image (or you are measuring the middle of a trail) the time of observation is the mid-exposure time. If you are measuring both ends of a trail, then one end is associated with the start of the exposure, the other with the end.

如果你测量的是小行星拖线的中部或该小行星没有明显的拖线，那么你应该使用你暴光时间的中点时刻作为该测量点对应时刻，如果你既测量了起点又测量了终点，那么你应该分别对应的是暴光的起始时间和终了时间。

The Minor Planet Center, which is located at the Harvard-Smithsonian Center for Astrophysics, serves as the worldwide clearinghouse for asteroid and comet observations.

该小行星中心，这是设在哈佛大学史密森天体物理中心，作为世界中心的小行星和彗星的意见。

Just when the two of them were exchanging sharp words, on the screen only a small point of light remained of the minor planet. As soon as Gululu noticed this he immediately said, Ah!

在两人针尖对麦芒中，屏幕上的小行星只剩下一粒不起眼的光点了，古噜噜一见，立刻说：「唉！

According to computer calculation, 100 years from now it'll collide with another minor planet 10 kilometers in diameter. This collision will scatter over 10,000 pieces of debris.

根据电脑计算，它在一百年以后，会与另外一颗直径十公里的小行星相撞，大概会散成上万个碎块。

The most important international conference on asteroid during the recent years,"Asteroids 2001: from Piazzi to the 3rd millennium", was held in Palermo, Italy, during June 11~16, 2001. Most of the conventioneers were experts in different directions of minor planet study.

2001年6月11~16日在意大利巴勒莫召开了小行星领域近10年来最重要的一次专业会议"小行星2001—从皮亚齐到第3个千年"(Asteroids 2001： from Piazzi to the 3rd millennium)国际学术研讨会，与会者几乎涵盖了小行星研究领域内各个方面的专家。

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。