查询词典 spontaneous emission

The situation of the light emission from arc welding region is analized in this paper.

本文通过对弧焊区各部分发光情况及光谱辐射情况的分析和研究，提出了选用光谱窗口观察弧焊区的弧焊光谱传感法。

In addition, we give the new form of emission area extraction functionΓ with HK approximation.

另外，我们还给出了面积获取函数Γ在HK近似下的新形式。

Effect of residual gas on emission property of gallium arsenide cathode in vacuum.

徐江涛。真空残气对GaAs阴极发射性能的影响。

Since the emission of the first artificial satellite by Soviet Russia in 1957, satellite communication technology has taken quite great development.

自从1957年前苏联发射的第一颗人造地球卫星诞生以来，卫星通信技术取得了长足的发展。

The ash melting process is a key process for dioxins zero emission.

其中，灰渣的熔融处理是限制二噁英零排放的重要步骤。

It has gotten across to judge operation capability of engine by thermal efficiency, noise, asperity and emission.

采用有限体积法对方程进行离散，并使用SIMPLE算法对离散后的控制方程组进行数值求解。

Much astrophysical information is to be obtained from the intensity of absorption or emission lines.

许多天体物理信息要根据吸收线或发射线的强度才能取得。

But this kind of open emission and reception system in High frequency communication has to face two challenges: firstly, natural interference from atmospherics and industry; secondly, tracing, blocking and multipath interference from enemy.

但这种开放式的发射和接收电磁波的通信，特别是在短波通信领域，不仅易遭到天电、工业等自然干扰，而且还要遇到敌方人为的跟踪、阻塞干扰以及多径等各种干扰。

The fact that only certain colors appear in an element's atomic emission spectrum indicates that only certain frequencies of light are emitted.

事实上，只有特定的颜色在一个元素的原子发射出现光谱表明，只有根据某些频率的发射。

It shows that fed metal-film electrode surface is clean, without atomy and organic menstruum, metal films are firm and the propertied of field emission is steady with ultrasonic cleaning at 32khz/10min and uv cleaning for 5 minutes.

实验结果表明，fed金属薄膜电极在32khz超声清洗10min，uv光清洗5min后，电极表面干净，无尘埃和有机污物，金属膜层不脱落，显示器场发射性能稳定。

Methods Clinical data of 3 cases of bile duct injury during laparoscopic cholecystectomy were analyzed retrospectively.

回顾总结3例LC术中胆管损伤的临床资料，分析3例胆管损伤的原因及对策。

These techniques are applied to the gobang.

本文将这些技术用于五子棋中。