“较轻的”用英语怎么说

被控告的这些男子受到相对较轻的判决。The accused men have been given relatively light sentences.较轻的推进器采用液态氢, 较重的采用自燃推进剂.The lighter version used liquid hydrogen, the heavier used hypergolic propellants.这些比较告诉我们,土星由较轻的物质构成.These comparisons...