An essential difference between "premium" and "regular" grades of kerosine is that the former has a higher smoke-point.

“高档”与“中档”煤油的根本差别在于前者比后者的发烟点高。

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An essential difference between "premium" and "regular" grades of kerosine is that the former has a higher smoke-point.

“高档”与“中档”煤油的根本差别在于前者比后者的发烟点高。

youdao