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- In the first Born approximation and the soft-photon approximation, the laser-assisted electron-atomic-hydrogen free-free transition is investigated with taking the exchange effect into acount. 在一级玻恩近似和软光子近似下;研究了激光场中电子对氢原子基态的自由自由跃迁;并考虑入射电子对束缚电子的交换效应.
- Chemical, power metallurgical and mining industry equipment, to cool the lil to specified temperature.This product is small in size, light in weight and good in heat exchange effect. 该产品广泛应用于塑料机械及轻工、化工、电力、冶金、矿山等设备的液压系统和低粘度润滑系统，将工作油冷却到规定温度，具有结构新，体积小，重量轻，热交换效果好等优点。
- Quark Exchange Effect in Two Baryon Systems 两重子间夸克交换效应与两重子体系结合能的分析
- After purging,the best heat exchanger effect and vacuum pressure could be obtained and the load of hydrogen compressor returned to normal value. 在线清洗后,凝汽器换热效果及真空度都达到最好水平,氢气压缩机恢复正常生产负荷。
- Heavner, R.L., Kumar, H. and Wannizrachi, A.S., “Performance of an Industrial Plate Heat Exchanger：Effect of Chevron Angle,” AICHE, Symp Ser., Vol.89, PP.65-70. 刘建富，“板式热交换器之空气加热与冷却性能分析”，国立中央大学机械工程研究所硕士论文。
- The results show that this kind of heat exchanger is feasible,effective and worthy to be popularized with characteristics of good heat exchanging effect and low resistance. 结果表明,该换热器具有换热效果好,阻力小的特点,说明其在实际应用中是可行的,也是有效的,是值得推广的空调节能技术。
- Do you accept foreign exchange certificate? 你们接受外汇券兑换券吗？
- Trading on the Stock Exchange was light today. 证券交易所今日交投平平。
- A soldier was wounded in the exchange. 一名士兵在交火中受伤。
- He gave me an apple in exchange of an orange. 他给我一个苹果，交换一个橙子。
- Each telephone served by a private branch exchange. 由专用小交换机提供服务的电话分机。
- By just exchange one for another giver. 就这样以心相许相与。
- The London Stock Exchange is in turmoil today. 今天伦敦证券市场一片混乱。
- Keep this exchange memo for reconversion into foreign currency. 保存好这张兑换水单以便兑换回外币。
- Is five apples for five eggs a fair exchange? 用五个苹果换五个鸡蛋公平吗?
- The New York stock exchange crashed in1929. 纽约股票交易所于一九二九年大崩溃。
- I'd like to exchange some pounds for dollars. 我想把一些英镑兑换成美金。
- An exchange of opinions is helpful. 相互交换意见是有益的。
- He paid for the goods sent him from Detroit by a bill of exchange. 他收到底特律给他发来的货物后以汇票付款。
- Please let me have a marketable lot in exchange for them. 请允许我们收到能出售的货物并将原货寄回。
