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- The carbon number range or the peak carbon number of normal alkanes in crude oils shift backuard and the light/ heavy hydrocarbons ratio show decreasing trendtion. 这些变化与原油在驱替过程中的自然色层吸附作用机理和原油中各种组分的相互作用关系有关。
- The ratio of students to teachers is 35:1. 学生和老师的比率是三十五比一。
- The ratio of schoolboys to schoolgirls is 2 to 1. 男学生和女学生的比例是2比1。
- Men outnumber women here in the ratio of three to one. 此地男子数量以三比一超过女子。
- The first or last term of a ratio or a series. 首项，末项比率或数列中第一个或最后一个项
- hydrocarbon ratio 烃比值
- The petroleum hydrocarbon is called hexane. 己烷是一种石油碳氢化合物。
- The hydrocarbon must be an alkene. 这个碳氢化合物必定是烯烃。
- After-tax profit margin is the ratio of net income to net sales. 税後利润率指净收入与净销售之比。
- Any of various hydrocarbon pesticides, such as DDT, that contain chlorine. 有机氯一种含氯的碳氢化合物杀虫农药，如滴滴涕杀虫剂
- It's based on hydrocarbon resin. 以烃类树脂为基料制成的耐热铝粉漆。
- The ratio of men to women was two to one. 男女的比例是二比一。
- Shanghai Jinsen Hydrocarbon Resins Co., Ltd. 上海金森石油树脂有限公司。
- The hydrocarbon radical,C6H13,having valence1. 己基碳氢化合物基，C6H13，原子价为
- The hydrocarbon radical, C6H13, having valence1. 己基碳氢化合物基，C6H13，原子价为1
- The interval between any two frequencies having a ratio of2 to1. 倍频程频率比率为2比1的两个频率的间隔
- A brown-to-black, soft, elastic hydrocarbon resin. 弹性沥青一种深棕色，柔软可弯曲的烃树脂
- The strike is the ultima ratio of Trade Unionism. 罢工是工联主义的最后手段。
- The cross ratio he called anharmonic ratio. 他把交比叫作非调和比。
- The ratio between the two sides is one to four. 双方人数对比是一对四。
