four level
网络释义
four-level laser [激光] 四能级激光器 ; 四能阶雷射
four-level solid laser [激光] 四能级固体激光器
four-level laser rod 四能级激光棒
four-level emitter 四能级放射体
four level laser 四能级激光器
four-level laser system 四能级系统
four-level fluoresent crystal 四能级荧光晶体
Kirkpatrick's Four-level Model of Evaluation 四阶层评估模型
Four Level of Leadership 领导的四个层面
双语例句原声例句权威例句
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A model of the photon avalanche in a four level coupled system is proposed.
提出了四能级耦合系统的光子雪崩上转换模型。
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To shorten the matching time, the four level fractal approximation coding based on matching in neighborhood is presented.
为了缩短分形编码中值域块与定义域块池中的定义域块逐一匹配时间，提出了四级邻域匹配分形近似编码。
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In this study, a three factor and four level orthogonal experiment was designed to study the biologic effect of ultrasonic radiation on Marine Chlorella.
设计了一个超声频率、超声功率和辐射时间三因素四水平的正交实验，研究超声辐射对海水小球藻的生物效应。
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It ends at the Dead Sea, the lowest point on Earth, four hundred meters below the level of the Mediterranean Sea.
VOA: special.2009.05.18
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So at this point in the story-- at this level in the story, if you will, I've touched one, two, three, four numbers total or I've made two comparisons.
那么这时，我总共已经动过了1，2，3，4个数字,或者说我做了两次比较。
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One, two, three, four, so on each level of the picture I'm drawing, I've seem only to be looking at each number once.
，2，3，4，可见，在我画的,这幅图的每一层上，对每个数字,都只会用到一次。
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