There is a clear annual cycle in the mauna loa data that corresponds to the annual cycle of plant respiration in the northern hemisphere : co 冒纳罗亚观象台的数据亦反映了每年在北半球因为植物呼吸作用而产生的周期变化： co
Muscovite university has zoologic , anthropologic , ancient live thing geological 3 museum , 4 astronomy observatory , and arboretum and place of numerous scientific research 莫斯科大学有动物学、人类学、古生物地质学3个博物馆， 4座天文观象台，以及植物园和众多科研所。
The biggest experiment , with arms up to four kilometres ( about two and a half miles ) long , is called the laser interferometer gravitational wave observatory , or ligo 有着4公里（约2 . 5英里）长的激光干涉管臂的实验装置，被称作激光干涉重力波观象台或ligo ，迄今为止是世界上同类最大的实验装置。
Cfc - 11 and cfc - 12 have the highest concentrations of the man - made chlorocarbons , around 0 . 27 and 0 . 55 ppbv , respectively measured at mauna loa in 1997 , fig . 5 6 . as indicated in their gwp values , these two gases are strong infrared absorbers 在多种人造的氯氟碳化合物中，以cfc - 11及cfc - 12的浓度最高，分别约为0 . 27及0 . 55ppbv量度于冒纳罗亚观象台, 1997 ,见图五和六。
Classified as first class national treasures , some of the instruments were seized by the joint armies of the eight nations from beijing in 1900 . all instruments were returned in 1921 after the first world war and are kept in the beijing ancient observatory 部份展出的天文仪器更为国家的一级文物，曾在年遭八国联军掠夺，所有仪器于年归还后才再安放在北京古观象台。
Over the following days i visit long - time favorites - the summer palace , the temple of the sun , the marco polo bridge , the ancient observatory and the 15th - century temple of heaven where the emperor prayed each year for bountiful harvests 丰收 其后几天，我重游了我一直心爱的地方，例如颐和园、日坛、卢沟桥、古观象台、建于15世纪的天坛明清两代的皇帝每年都在此祈求五谷丰登。
Classified as first class national treasures , some of the instruments were seized by the joint armies of the eight nations from beijing in 1900 . all instruments were returned in 1921 after the first world war and are kept in the beijing ancient observatory 部份展出的天文仪器更为国家的一级文物，曾在１ ９ ０ ０年遭八国联军掠夺，所有仪器于１ ９ ２ １年归还后才再安放在北京古观象台。
