天文

John McKean, who is part of the research team at the Max Planck Institute, says some black holes, are inactive.

约翰麦侃是卜朗克无线电波天文研究学院研究团队的一员，说有些黑洞是不活动的。

People practice yoga on a rocky crest filled with astronomical markers at the megalithic observatory of Kokino, Macedonia, soon after sunrise, early on June 21, 2009 -- the day of the summer solstice.

人与在Kokino，马其顿，巨石天文台天文标记填补了岩石顶练瑜珈日出后不久，早在2009年6月21日-在夏至日。

In celebration of the northern winter solstice and the Internat ional Year of Astronomy 2009, you can watch a live webcast of the the solstice sunrise from the megalithic tomb of Newgrange, in County Meath, Ireland.

作为庆祝冬至和2009国际天文年的活动，你可透过网路，观看爱尔兰Meath郡巨石时代纽格兰奇古墓冬至日出的实况转播。

REACH FOR THE SKY \ 抵达天际 People practiced yoga at a Kokino, Macedonia, archaeological site and megalithic observatory Sunday.

周日的马其顿共和国，人们正在名为Kokino的巨石古天文遗迹练习瑜伽。

The cause of meteor shower formation is explained, and the methods of observation and their practice are introduced.

阐明了流星雨的成因并介绍了流星雨的观测方法和实践，以及它的研究意义，对天文教育与科普工作者值得参考。

As the one of key technologies of"Preliminary Study", the use of capacitance micrometer was described in detail.

微位移监测定位技术是"预研"项目中关键技术之一，本文对电容测微仪在大型天文望远镜中的应用做了较为详细的论述。

Parametric amplifier in a number of microwave devices, widely used, usually in radar, navigation, electronic warfare, radio astronomy microwave systems such as receiver front-end amplifier, greatly increased the sensitivity of the receiver.

参量放大器在许多微波设备中得到广泛的应用，通常在雷达、导航、电子对抗、射电天文等微波系统中作接收机前端放大器，大大提高了接收机的灵敏度。

For example, read-write channel of a disk drive systems, communication systems, microwave telescope array, and 10-GSamples/s microwave receiver are the cases.

举例而言，硬碟驱动系统的读写，通讯系统，微波电子天文望远镜，以及每秒十亿取样的微波接收器，都属於此应用范围。

In Turn of the Century Magnificence, Zhu Tianwen uses intricately colorful descriptions:"shrimp red, salmon red, linen yellow, milfoil yellow. The sky goes from pink to dark green, and right before the curtain falls, a fire lights out on the horizon, the roaring city afire." This is the sky she saw through Monet's eyes, but this description can definitely be used for Liao Yibai's paintings.

朱天文在《世纪末的华丽》中有着繁丽的色彩铺陈："虾红，鲑红，亚麻黄，蓍草黄，天空由粉红变成黛绿，落幕前突然放一把大火从地平线烧起，轰轰焚城"，这是她借莫奈之眼看见的天空，但这段描写却几乎可以完全挪用到廖一百的绘画上。

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。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。