我是大學英語老師，翻的錯的請指出。Camellia (Camellia Block oleifera) is a unique woody edible oil. mainly distributed in south China's Yangtze River Valley region. Its seed processing tea oil to be refined and, tea seed oil, Defatting, tea oil saturated fatty acids are not as high as over 90% oleic acid reached 80~83%, linoleic acid reached 7~14% and rich in protein and vitamins A, B, D, E, In particular, it is rich in essential and which can not be synthesized linolenic acid. In addition, which contained traces Defatting Camellia glycosides, saponins camellias, tea polyphenols, squalene and other active substances. Long-term consumption can lower blood cholesterol levels conducive to the prevention of cardiovascular diseases, and for diseases such as diabetes have some preventive treatment. In this paper, tea oil extraction rate indexes of the supercritical fluid extraction tea oil in the best conditions. Test materials were inspected smash, pretreatment, extraction pressure, temperature, extraction time, carbon dioxide flow, Analysis of pressure, temperature analysis, installation estimate of nine single factor supercritical carbon dioxide extraction tea oil extraction results. In the single factor, based on poor analysis, the extraction temperature, the extraction pressure, Extraction time three factors design of the return of orthogonal rotation. Under the single-factor test : extraction rate with the smash, extraction temperature, carbon dioxide flow increase at first and then decreased. With the extraction rate of extraction pressure and extraction time increases; With the rate of extraction and analytical equipment feed pressure decreased with the increase. Skimmed maturation level of tea oil extraction rate greater impact test proved by stirring the tea seeds tea oil extraction rate. The pilot identified supercritical CO2 extraction of tea oil optimum parameters : smash the head 40 degrees to 80 projects, 10 L/hr carbon dioxide flow, pressure 6MPa analytic, analytic temperature 50 ° C, loaded estimate 50% Extraction temperature of 40 ° C, the extraction pressure 28Mpa, the extraction time is 2.0 hours. Keywords : supercritical CO2 extraction tea oil