燃素

例句：

1. 1. The scientistdiscovered a new type of fuel that couldsignificantly increase energy efficiency.
   科学家发现了一种新燃料，可以显著提高能源效率。
2. 2. Theinvention of the combustion engine revolutionized transportation and greatly increased the amount ofenergy available for human use.
   内燃机的发明彻底改变了交通运输方式，极大地增加了人类可用的能量。
3. 3. Thestudy of atomic structurehas led to the discovery ofelements with higher atomic numbers,which have greater nuclear energy.
   原子结构的研究导致了更高原子序数元素的发现，这些元素具有更大的核能。