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 and US customary measurement systems ounces (of 437.5 grains). The unit of volume, the gallon, has different values in the United States and in the United Kingdom – the US fluid gallon being about 0.83 imperial gallons and the US dry gallon being about 0.97 imperial gallons. Both systems of measure were widely used in mechanical engineering, though not in electrical engineering. Some units of measure such as the horsepower or the British thermal unit (BTU) have special names but by and large unit names are generated from their constituent components – for example, pounds per square inch. In contrast, the metric system has a