noun 下载 🔗分享 密度 A measure of the mass of matter contained by a unit volume. Examples : "The high population density of the city meant there were many people living in a small space. " 这座城市人口密度很高,意味着在很小的空间里住着很多人。 physics material mass substance science 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 密度 The ratio of one quantity, representing something of interest, to another quantity representing space, area, or extent in which the thing of interest is distributed. Examples : "The number of particles per unit volume of a specified volume can be considered to be the particle density for the specified volume." 在特定体积内,单位体积中的粒子数量可以被认为是该特定体积的粒子密度。 physics material mass space amount technical science 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 概率密度,密度。 The probability that an outcome will fall into a given range, per unit of that range; the relative likelihood of possible values of a continuous random variable. Examples : "The density of students in the morning rush hour at the school bus stop is highest between 7:45 and 8:00. " 早上上学高峰期,在校车站点,7:45到8:00之间学生出现的概率密度最高,也就是说,在这个时间段学生最集中。 math statistics physics 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 愚蠢,糊涂。 Stupidity; denseness. Examples : "His density was evident in his repeated, foolish mistakes at work. " 他的愚蠢在他工作中重复出现的愚蠢错误中显而易见。 mind character quality 与AI对话词汇游戏阅读练习