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- Removal Carbon Fluoride Impurities From Raw Carbon Tetrafluoride by Pressurized Rectification 加壓精餾除去四氟化碳中六氟乙烷等氟碳雜質(zhì)的研究
- noncrystal carbon film 非晶態(tài)碳膜
- I make a carbon copy of my documents. 我用復寫(xiě)紙復寫(xiě)文件。
- Soft drinks contain carbon dioxide. 軟飲料中含有二氧化碳。
- I have some carbon paper somewhere or other. 我記得我在什么地方放有復寫(xiě)紙。
- She's a carbon copy of her sister. 她跟她姐姐一模一樣。
- A copy made by using carbon paper. 復寫(xiě)本，副本用復寫(xiě)紙復印的一份
- Plants can absorb carbon dioxide and release oxygen. 植物可以吸收二氧化碳釋放氧氣。
- Does fluoride help prevent cavities? 氟可以防止蛀牙嗎?
- Lab Experiment on Harm of Fluoride on Rubber Trees. 大氣氟化物對橡膠樹(shù)的傷害實(shí)驗研究。
- Dried Aluminium Fluoride Producing Facility. 干法氟化鋁生產(chǎn)裝置建設。
- Study on Polyvinylidene Fluoride Coating. 聚偏氟乙烯涂料的研究。
- You receive the top copy of the receipt, and we keep the carbon. 你把這收據上面的原件收下，我們保留下面的復寫(xiě)件。
- The stick of carbon is often used in an electric arc lamp. 碳精棒常用于電弧燈。
- PH is 6.5 to 8, no sulfur or fluorid. PH值為6.;5到8之間，不含硫、氟化物。
- Fluoride has many effects on cell mem brane . 氟對細胞膜有多方面的影響。
- Having a ring composed exclusively of carbon atoms, as benzene. 碳環(huán)的有一個(gè)僅由碳原子組成的環(huán)的，如苯
- A radioactive isotope of carbon, especially carbon 14. 放射性碳碳的一種放射性同位素，尤指碳14。
- Enolase isolated from peas was sensitive to fluoride. 從豌豆提取的烯醇酶對氟化物敏感。
- Carbon dioxide consists of carbon and oxygen. 二氧化碳是由碳和氧組成的。
