您要查找的是不是：
- positron microtron 阳电子微波加速器
- An electron with a negative charge, as contrasted with a positron. 电子带有负电荷，与正电荷相反的电子
- Positron is how it was detected by ? 正电子是如何被检测出来的呢？
- A group of detailed result of S band microtron is also given. 计算用C语言编制的程序在微机上进行。
- The antielectron, or positron, was discovered in 1932. 反电子或正电子,是在1932年被发现。
- To participate in annihilation, as do an electron and a positron. 湮灭，湮没湮灭，如电子与正电子
- To participate in annihilation,as do an electron and a positron. 湮灭，湮没湮灭，如电子与正电子
- An electron with a negative charge,as contrasted with a positron. 电子带有负电荷，与正电荷相反的电子
- 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。
- The “sub-micron grinding” of Microtron could produce better-quality products within the coating industry. 在涂料工业中，“亚微米级研磨”麦科充砂磨机能生产出最佳质量的产品。
- The vacancy defects of samples were measured by slow positron annihilation. 借助慢正电子湮没技术研究了样品的空位型缺陷。
- Shimano introduced Positron indexed shifting for low-priced bicycles in 1977. 禧玛诺介绍了正电子索引的低价自行车在1977年转移。
- The theory of medical microtron is introduced.The theory of medical runway microtron is expressed and its characteristics are compared with electron linear accelerator. 着重介绍了电子回旋加速器原理,重点介绍了跑道式电子回旋加速器的工作原理,并对电子回旋加速器和电子直线加速器的特点进行了比较。
- Both rely on mathematical calculations to determine the location from which a positron or photon was emitted. 这两种成像方法均依靠精确的计算来决定正电子或光于发射的位置。
- Antimatter/matter reactions have practical applications in medical imaging, see Positron emission tomography (PET). 反物质/物质反应在医学成像有实际应用,注意正电子放射断层摄影术(PET)。
- Positron Emission Tomography Study of Regional Cerebral Metabolism during General Anesthesia with Xenon in Humans. 氙气全身麻醉时对于人类局部区域脑代谢的正电子扫描图像研究。
- In positron emission tomography (PET), a patient is injected with a radioactive element that produces photons, which are sensed slice by slice. 至于正子断层扫描（PET）的做法，受试者要先注射可产生光子的放射性元素，然后从每个切片中侦测光子的存在。
- A short-lived association of an electron and a positron bound together in a configuration resembling the hydrogen atom. 电子偶素，正电子素电子与正电子的短暂结合物，两者的结合物与氢原子的结构十分相似
- This is the mathematical basis of computed tomography and positron emission tomography. 这是计算机层析成像和正电子层析成像的数学基础。
