天顶距

Lynn Hill made the first and second free ascents of the Nose, freeing the route over four days in 1993 and then returning the next year to make a one-day free ascent. In 1998, Scott Burke climbed the Nose free in a stormy 12-day ascent, leading every pitch but the Great Roof, which he free-climbed on toprope.

Lynn Hill是第一个和第二个自由攀登Nose的人，她在1993年用4天时间完成了Nose的第一次自由攀登，并且第二年又在Nose进行了一次一天的自由攀登。1998年，Scott Burke在暴风雨中用12天完成了Nose的自由攀登，除了在Great Roof用了顶绳外，他领攀了其他的所有绳距。

Making use of structural characteristics of the Lower Latitude Meridian Circle and the error theory of this instrument, we have developed a method used to measure directly instantaneous atmospheric refraction, and moreover built a local observational astronomical refraction model toward the east, south, west and north of Yunnan observatory that is classified according to the star's spectral type.

阐述了云南天文台探讨出的利用低纬子午环的观测原理，在不同方向和不同天顶距直接测定瞬时大气折射值的一套方法，并给出了用实测数据在东、南、西、北4个方向建立的按恒星光谱型分类的大气折射实测模型。

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。