The antielectron, or positron, was discovered in 1932.

反或,是在1932年被发现。

The nuclide chart involves electron, positron, antiproton, antineutron, photon to exhibit the symmetry of mass and charge ideally.

该核素图将、、反质、反中和光收录在内，完美地表现了质量和荷的对称性。

The key of this technology depended on increasing batteries positron electrode -- zincous -- the electron that can carry.

这项技术的重点在于增加了池极——阳极——所能携带的。

Objective To evaluate the value of 18 F-deoxyglucose (FDG) positron emission tomography (PET) in detecting the primary focus of metastatic cancer with an unknown primary.

目的探讨18F-脱氧葡萄糖(FDG)发射型体层摄影术(PET)全身显像在原发灶不明转移癌中的作用。