英语语法分析

The fruity type flue-cured tobacco essence mainly consists of trans-2-hexenal, hexenyl formate and the like.

果味型烤烟香精主要由反式-2-己烯醛，甲酸己烯酯等组成。

Ammonium formate and sodium formate are the suitable hydrogen donors.

甲酸铵和甲酸钠是优良的氢源。

Scientists thought formate was too poor an energy source to support life. But these archaea do fine.

科学家认为甲酸盐做为供养生命的能量源简直太苛刻了，但是这些古细菌却很好地生存下来。