这一理论的唯一特性使其成为一个经得住考验的预言，一个带有批判成分的科学手段。
This last property had the great virtue of being a prediction that could be tested, a critical ingredient of the scientific method.
两人本质上都不是具有批判性的人，而这是他们广泛吸引力中的一种重要成分(艺术迷们通常都喜欢自己下定义。)
Neither are "critical", per se, and this is an important ingredient in their widespread appeal. (Art aficionados generally prefer to make up their own minds.)
作为一种文化唯物主义理论，在西方流行的“文化进化论”中有一些成分值得中国地域文化研究加以批判借鉴。
There are some components in materialism of "cultural evolution" in west fashionably, as a theory of cultural materialism, which could be criticized in studies of Chinese regional culture.
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