拓扑学

Much of the terminology of morphisms, as well as the intuition underlying them, comes from concrete categories, where the objects are simply sets with some additional structure, and morphisms are functions preserving this structure.

例如，在集合论中，态射就是函数，在群论中，它们是群同态，而在拓扑学中，它们是连续函数。在泛代数的范围，态射通常就是同态。

Essential genes tend to play topologically more important roles in protein interaction networks.

在蛋白质相互作用中，必需基因趋向于在拓扑学上有更加重要的作用。

The world of mathematics is not exactly a market, in the sense of a forum where people always sell to the highest bidder: indeed, one consequence of the topologists' change of affiliation is that work in their field will be available at lower prices to humble scholars.

确切的说，数学界并非像一个大集市——在这里人们只把货物卖给出价最高的人。的确，一个拓扑学家对&市场&依附关系改变的结果是：对于那些卑微贫困的学者而言，仅花费最低的价钱就可以在这个领域进行研究。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。