在不同时间尺度上，15日尺度总的时间异质性程度远大于1日尺度；
From the point of time, the extent of time heterogeneity of 15 days is further lager than that of 1 day;
胡杨集合种群在种子时间上存在异质性。
There was heterogeneity in seed time in the euphratica meta-population.
在时间和空间上，环境是异质性的。
长时间以来，人们认为肿瘤由异质性肿瘤细胞群构成。
Cancer has long been viewed as a heterogeneous population of cells.
在土壤水分时空异质性研究中发现，在不同的空间和时间尺度上，实验区土壤水分均呈中等程度的相关性。
The study on the heterogeneity of soil moisture found that the soil moisture in the research area has a kind of medium correlation with time and space of different scale.
然后作者又提出求异质性在时间上的指数，这多半采用以下方法：生境：森林为—1，草甸或稀树草原为O。
The author then proposes to develop an index of heterogeneity in time, perhaps in the following manner: Habitat, applying the numbers-1 of forest, o for meadow or savanna.
以异质性计算模型为依据，分析运行图异质性的影响因素，包括不同速度差、不同列车比例、区间长度、天窗类型、缓冲时间等。
According to calculate method, the paper analyzed the influencing factors about heterogeneity, including velocity difference, proportion difference, interval length, buffer time.
然而，在反映异质性的个体效应和时间效应的设定上，经常存在人为的主观性和随意性，因此容易导致错误指定事件的发生。
However, there are many subjectivity and randomness on the specification of individual and time effects, which easily leads to misspecification and wrong conclusions.
然而，在反映异质性的个体效应和时间效应的设定上，经常存在人为的主观性和随意性，因此容易导致错误指定事件的发生。
However, there are many subjectivity and randomness on the specification of individual and time effects, which easily leads to misspecification and wrong conclusions.
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