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- two kinds of carbon sources 两种碳源
- Three kinds of rubber, NR, EPDM and NBR, and two kinds of carbon black, HAF(high abrasion furnace, N330) and FEF(fast extruding furnace, N550), were used to prepare conductive polymer composite. 摘要以炭黑(N330,N550)以导电相，橡胶(NR,EPDM,NBR)为基质制备压敏导电复合材料。
- The views on the mechanism of carbon dioxide methanation were reviewed.The possibility of two kinds of methanation mechanisms was discussed on the basis of kinetics and thermodynamics. 首先对二氧化碳甲烷化的二种机理进行了回顾，并对这二种机理存在的可能性进了探讨。
- There re two kinds of white ones and black ones. 有两种棋子: 白色的和黑色的。
- We have only two kinds of jackets on sale now. 我们现在只有两种皮夹克上市。
- Let us distinguish two kinds of derangements. 让我们把错位排列分为两种。
- Don't mix up the two kinds of vegetable seeds. 别把这两种菜籽搀杂在一起。
- There are two kinds of speed skating. 速度滑冰有两种形式。
- In fact two kinds of methods are the same. 实际上两种方法是一样的。
- Birds can make two kinds of sounds-calls and songs. 鸟能够发两种声音，一种是叫唤声，一种是歌声。
- There are two kinds of tragedy in your life. 曾写道人生有两种悲剧。
- See because there are two kinds of lye. 我们都知道碱液分两种。
- Two kinds of boiler design methods are developed. 开发了锅炉设计的两种方法。
- There are two kinds of venation, parallel and net. 叶脉有两种：平行脉和网状脉。
- We have two kinds of personal checking accounts. 我们有两种个人支票账户。
- But now we are having two kinds of partings. 但现在，我们对临别却有两种不同的想法。
- THERE are two kinds of knowledge. 知识有两种。
- Embry has two kinds of sports waists and gallus. 安莉芳有二款运动型的小背心和小吊带式的。
- The two kinds of chemical ract with each other. 这两种化学物品相互作用.
- Besmear contains two kinds of means, wax or paint. 涂装有两种方式，打蜡或者油漆。
