Longjing tea from bluish to deep green after steeping. Before infusion, higher quality Longjing teas have a very tight, flat shape and light green color. A study by Wang and Ruan (2009) found that one aspect of the perceived low quality of Longjing teas was a higher concentration of chlorophyll, producing a darker green color. The study revealed that free amino acids and theanine concentrations contribute positively to what is perceived as a good taste. Longjing tea was granted the status of Gong Cha, or imperial tea, in the Qing dynasty by the Kangxi Emperor. According to the legend, The Kangxi Emperor's
CAIG Sky Wing similar functions. The cause of such confusion is that when Sky Wing was first revealed to the public at airshows and exhibitions at the proposal stage, no name was given and later only the SW designation was shown, and SW, the abbreviation of Sky Wing can either be translated as Tianchi or Tianyi, and Chinese military enthusiasts used Tianchi on their internet posts. However, Tianchi is not the Chinese name for Sky Wing III, because the developer finally revealed the name is actually Tianyi instead. Sky Wing I (天翼 I) is the first member of CAIG Sky Wing series, and