查询词典 positron

One signature of positron-electron annihilation is gamma rays carrying 511 thousand electron-volts of energy.

电子-正电子湮灭的一个信号就是携带511keV能量的伽玛射线。

All patients underwent fluorodeoxyglucose positron emission tomography 6 to 8 months after GKS.

所有的病人都在加马刀放射手术治疗后的6-8个月实施氟-18去氧葡萄糖正子断层摄影。

Our study suggests that, for patients with gliomas treated by GKS, the post-treatment fluorodeoxyglucose-positron emission tomography could be used to predict response to treatment.

我们的研究显示对经过加马刀放射手术治疗的神经胶质瘤的病人而言，治疗后的氟-18去氧葡萄糖正子断层摄影可以用来预测治疗效果。

Participants Twenty-eight healthy subjects, 16 subjects with an MDE secondary to MDD, and 18 subjects with MDD in recovery underwent carbon 11–labeled harmine positron emission tomography scans. Subjects with MDE were scanned before and after 6 weeks of SSRI treatment.

抑郁症目前已经成为第四大导致人过早死亡的原因，其中抑郁症反复发作就是一个主要问题——即使采用最优化的治疗方法，抑郁症在两年之内的复发率也不低于20%。

This paper describes the improvement in the personnel security interlock system of Beijing Electron Positron Collider .

本文介绍北京正负电子对撞机人身安全联锁系统的改进，主要叙述了人身安全联锁的要求和新系统方案的确定。

Includes all manifolding, valving and supplies necessary for the automated production of positron emitting radionuclides.

包括所有自动化生产化学药物的岐管，阀门和支持系统

More than 20 high scientific and technical products represented importantly as the key parts of positron and negatron collider, heavy ion accelerator and synchronous radiation accelerator etc.

以正负电子对撞机、重离子回旋加速器、同步辐射加速器关键部件等为代表的20多种高科技产品，在国内享有很高知名度及信誉，部分产品已达到当代世界同类产品的先进水平。

In what follows, we will emphasize the positron source design, manufacture and tests.

本文将着重介绍正电子源系统的设计、加工和测试。

This creates, as it were, electron and positron shadows.

这样也就有了电子和正电子的阴影。

The result is that the electron shadow and the positron shadow are separated.

结果将使得电子的阴影和正电子的阴影被分开。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。