从蒸馏试验所得初馏点与终馏点之间的温度差值。

The difference between the temperature at the initial boiling point and at the end point, as obtained by the distillation test.

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从蒸馏试验所得初馏点与终馏点之间的温度差值。

The difference between the temperature at the initial boiling point and at the end point, as obtained by the distillation test.

youdao