The key implication of the research, the scientists say, is that access to fossil fuels must somehow be rationed and eventually turned off, if the 2c target is to be met.
科学家们表示，该项研究的重要含义在于，为了防止气温升高2摄氏度，化石燃料必须限量使用，并最终放弃。
2
A key test of the biological hypothesis for ALH 84001 is the formation temperature of the carbonates that contain the putative fossil evidence.
对84001生命假说来说，一个重要的测试是这个化石里碳酸盐的形成温度。
3
Pseudogene is regarded as biologic fossil in genome evolution and key in research of biologic evolution and dynamic genome because it keeps information of ancient genes.