Chinese imperial cuisine very important, so the colour and the shape of the dish must be carefully arranged. The most famous Chinese imperial cuisine restaurants are both located in Beijing: "Fang Shan" () in Beihai Park and "Ting Li Ting" () in the Summer Palace. Styles and tastes of Chinese imperial cuisine vary from dynasty to dynasty. Every dynasty has its own distinguishing features. The two famous styles of Chinese imperial cuisine are from the Ming and Qing dynasties. Many famous dishes emerged in these dynasties, such as Wensi tofu and Peking duck. In the history of Chinese cuisine, Chinese imperial cuisine experienced
Imperial units firearms and ammunition. Imperial measures are still used in the description of cartridge types, even when the cartridge is of relatively recent invention (e.g., .204 Ruger, .17 HMR, where the calibre is expressed in decimal fractions of an inch). However, ammunition that is already classified in metric is still kept metric (e.g., 9×19mm). In the manufacture of ammunition, bullet and powder weights are expressed in terms of grains for both metric and imperial cartridges. As in most of the western world, air navigation is based on "nautical" units, e.g., the nautical mile, which is neither imperial nor metric, though altitude