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- A set of coupled nonlinear self-consitent differential equations of the FEM amplifier, including the effects of electron momentum spread, adiabatic injection of electron beam, space charge and wiggler taper, is derived in three dimensions. 在此基础上,利用三维非线性理论,导出了以椭圆波导、平板摇摆器为FEM放大器模型的三维非线性工作方程组,考虑了电子注发射度、空间电荷波效应、电子注在互作用区入口处的绝热压缩过程以及变参数摇摆器等因素。
- DYNAMICS OF MOMENTUM SPREAD OF ULTRACOLD ATOM IN A PHASE-MODULATED ACCELERATING STANDING LIGHT FIELD 冷却原子在相位调制加速驻波光场作用下动量扩散的动力学
- Moral taint has spread among young people. 道德的败坏在年轻人之间蔓延。
- He spread the map flat out on the floor. 他把地图平铺在地上。
- The sledge gained momentum as it ran down the hill. 雪橇从山上下冲时动量越来越大。
- A hopeless future seemed to spread out before her. 展现在她面前的似乎是毫无希望的前途。
- He has spread a slice of bread with Jam. 他把面包片抹上了果酱。
- An irreversible momentum toward open revolution. 朝向公开革命不可逆转的势头
- He spread the news around the town. 他在镇上到处传播这一消息。
- The news soon spread to the farthest corner. 消息很快传到最远的角落。
- Fear spread through the crowd like a contagion. 人们心中的恐惧像瘟疫一样蔓延开来。
- He spread some apple jam on the bread. 他在面包上涂上苹果酱。
- Use the applicator provided to spread the glue. 使用所附涂敷器涂用胶水。
- Strong forward momentum; driving force. 强大的前动力; 推动力
- She likes to spread the bed with a pretty cover. 她喜欢用漂亮的床罩来罩床。
- He spread some strawberry jam on his toast. 他把草莓酱涂在烤面包片上。
- The struggle for independence is gaining momentum every day. 为独立而斗争的势头日益增长。
- The search party spread out over the moor. 搜索队在荒草地分散行动。
- The water spread over the floor. 水流了一地。
- Don't all sit together, spread yourselves out. 别都挤在一块儿，分开坐吧。
