Sometime, the effect of emissivity is quite conspicuous under some specific conditions of environment.
在某些特定条件下，这一因素的影响是十分显著的。
It took some courage to make this point under the prevailing conditions.
在当时的情况下，提出这个问题是很勇敢的。
It took some courage to make this point under the prevailing conditions.
在当时的情况下，提出这个问题是很勇敢的。
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