vital factors 生命要素 ; 生命要素〔维持生命所必需的因素 ; 关键要素事业生活成功的隐性因素
vital factors index 活力因素指数
vital few factors 极少数因素
Further evidence that noncoding DNA is vital has come from studies of genetic risk factors for disease.
进一步的证据表明，非编码dna是非常重要的来自疾病的遗传风险因子研究进展。
Scientists have long known that vitamin D is a vital nutrient that the skin produces when hit by sunlight. The amount varies, depending on where the person lives, skin pigment, age and other factors.
科学界的共识是,人的皮肤可以通过日晒产生维生素D.而产生的数量并不固定,这取决于人所在地,皮肤的状况,年龄以及其他的因素.
Demographic transition is one of the vital factors challenging the sustainable economic growth in China.
人口转变是挑战中国经济持续增长的一个重要因素。
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