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- silica sesquioxide ratio 硅铝铁率,硅 三氧二某化合物比
- 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
- The crude oil is chromatographed over silica gel. 粗制油状物用硅胶进行色谱分离。
- Containing little silica, as igneous rocks. 基性的基性的，含有比较少量的二氧化硅的作为火成岩的
- It is a compound of aluminum, silica, and fluorine. 它是铝、硅和氟的化合物。
- Containing little silica,as igneous rocks. 基性的基性的，含有比较少量的二氧化硅的作为火成岩的
- 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。
- Silica is a basic unit in many ceramics. 硅是一种基本的陶瓷制品。
- Hydrophobic silica is the active antifoam agent. 憎水性硅石是一种有效的防泡剂。
- The ratio of men to women was two to one. 男女的比例是二比一。
- 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
- Beneficiation removes clay and silica to considerable extent. 富集操作除去粘土和硅石达到相当高的程度。
- 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。
- A variety of silica that contains microcrystalline quartz. 燧石含微小晶状的石英的各种硅石
- The ratio between the two sides is one to four. 双方人数对比是一对四。
- A translucent mineral of hydrated silica, often used as a gem. 蛋白石一种非晶质氧化硅，含有明显的变色晕彩，常被用来当作宝石
