Molecular genetics came to depend upon studies of the structure and function of dna, rna and protein . 分子遗传学的形成仰赖于DNA，RNA和蛋白质的结构与功能的研究成果。
He believed fervently that american progress and prosperity depended upon private initiative and striving . 他强烈相信美国的进步与繁荣，有赖于私人的首创精神和努力奋斗。
"you may depend upon it, they're a cranky lot, the forsytes—and you'll find it out as you grow older! " “的的确确，福尔赛家的人都是些神经病你年纪大一点就会懂得。”
"his happiness depends upon it. is not that a good reason?" asked mrs. penniman, impressively . “他的幸福有赖于此事，这难道不是很好的理由吗？”佩尼曼用特别亲切的语气说。
The vitamin b12 requirements appear to depend upon the levels of choline, methionine and folic acid in the diet . 维生素B12的需要量决定于食品中胆碱、蛋氨酸以及叶酸的含量。
It takes place over a period of time, at a rate depending upon the nature of the material and upon the amount present . 它在一个时期内发生，其速率取决于物质的性质和它的数量。
The initiation and maintenance of faults will depend upon the contemporary system of tectonic stresses in the earth's crust . 断层的发生和保持取决于地壳的构造应力的同代体系。
The total costs of construction depend upon the amount and cost of the land plus the degree of sophistication of the facility . 建设总投资取决于土地的数量、价值和先进技术利用的程度。
The ideal of marriage in the past depended upon the authority of the husband, which was admitted as a right by the wife . 婚姻的理想，在过去是依靠于丈夫的权力，它是妻子所承认的丈夫的一种权力。
These time-limits depend upon our exertions, upon our achievements, and on the hazardous and uncertain course of the war . 这些时限，要看我们的努力，我们的成就和战争的危险而变化无常的进程而定。
