Wu Zhengyi was the leading systematic botanist of China during the second half of the 20th Century.His encyclopedic knowledge of Chinese plants,their medicinal uses,and their distributions was shared through a wide va...Wu Zhengyi was the leading systematic botanist of China during the second half of the 20th Century.His encyclopedic knowledge of Chinese plants,their medicinal uses,and their distributions was shared through a wide variety of publications and directly展开更多
The LM-2F launch vehicle is China's first launch carrier developed for China's Manned Space Program,which is one of the most important parts of the Program.It is developed from the LM-2E launch vehicle,with ad...The LM-2F launch vehicle is China's first launch carrier developed for China's Manned Space Program,which is one of the most important parts of the Program.It is developed from the LM-2E launch vehicle,with addition of two new systems,an escape system and a fault detection system.展开更多
文摘Wu Zhengyi was the leading systematic botanist of China during the second half of the 20th Century.His encyclopedic knowledge of Chinese plants,their medicinal uses,and their distributions was shared through a wide variety of publications and directly
文摘The LM-2F launch vehicle is China's first launch carrier developed for China's Manned Space Program,which is one of the most important parts of the Program.It is developed from the LM-2E launch vehicle,with addition of two new systems,an escape system and a fault detection system.
