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- The catalytic gas liquid isotope exchange reaction is a good method to prepare tritiated triptolid. 采用催化氣液同位素交換法制備了氚化雷公藤甲素,探討了反應時(shí)間和反應介質(zhì)對反應產(chǎn)額的影響。
- For this purpose, we have investigated the isotope exchange process for the trace recovery from the imitative residue of the alloy. 利用同位素交換法對模擬液態(tài)鋰鉛合金殘渣中的微量氚進(jìn)行回收。
- KINETICS OF ~(14)C ISOTOPE EXCHANGE BETWEEN HCOONa AND NaH~(14)CO_3 碳酸氫鈉和甲酸鈉之間~(14)C交換反應動(dòng)力學(xué)
- The 18O shift may indi-cate the isotopic exchange between water and rocks and the relict of co-diagenetic formation water. ~(18)O漂移可能表明水與巖石發(fā)生了氧同位素交換,也可能有少量同生沉積水殘存。
- Do you accept foreign exchange certificate? 你們接受外匯券兌換券嗎？
- Trading on the Stock Exchange was light today. 證券交易所今日交投平平。
- 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。
- A soldier was wounded in the exchange. 一名士兵在交火中受傷。
- He gave me an apple in exchange of an orange. 他給我一個(gè)蘋(píng)果，交換一個(gè)橙子。
- Each telephone served by a private branch exchange. 由專(zhuān)用小交換機提供服務(wù)的電話(huà)分機。
- By just exchange one for another giver. 就這樣以心相許相與。
- The London Stock Exchange is in turmoil today. 今天倫敦證券市場(chǎng)一片混亂。
- Heat exchanged Analysis in Roadbed Engineering in Permafrost Area 多年凍土地區路基工程換熱分析
- Influence of Packing Material and Method on the Efficiency of Liquid Phase Water-Hydrogen Isotope Exchange 填料及填裝工藝對水-氫同位素液相催化交換效率的影響
- Keep this exchange memo for reconversion into foreign currency. 保存好這張兌換水單以便兌換回外幣。
- Is five apples for five eggs a fair exchange? 用五個(gè)蘋(píng)果換五個(gè)雞蛋公平嗎?
- The New York stock exchange crashed in1929. 紐約股票交易所于一九二九年大崩潰。
- The hydrogen and oxygen isotope exchange kinetic and its geological significance 氫氧同位素交換動(dòng)力學(xué)及其地質(zhì)意義
- I'd like to exchange some pounds for dollars. 我想把一些英鎊兌換成美金。
- The symbol for the isotope deuterium. 氘的化學(xué)符號同位素氘的符號
