Availability of Oxygen-The degree of anaerobiosis is a principal factor controlling fermentations. with yeasts. when large amounts of oxygen are present, yeast cell production is promoted.
人类通过,为好奇而得到的产物,已开发了一批控自然过程的系统。其中之一就是通过控(括促进)微生物的生长来保藏食物。
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To a sovereign, on the contrary, who feels himself supported, not only by the natural aristocracy of the country, but by a well regulated standing army, the rudest, the most groundless, and the most licentious remonstrances, can give little disturbance.
相反,对于一个感己不仅得国内贵族支持,而且得一支训练有素常备军支持君主,最粗鲁、最无根据和最放肆抗议也不会造成什么干扰。