abbr.Heavy Aircraft Fuel 重质飞机燃料;
例句:
I haf not heard of such a thing.
不,我才不给你那隐居的矿工糊涂虫当模特儿呢.
He normally would make at least haf of the shots.
他通常会把至少出手次数的一半球投进.
The study on modification and dispersion of high-dosage HAF in NBR.
高用量HAF在NBR中的改性和分散性探讨.