接受正电子是艰难的第一步。

It was a very difficult first step to accept the positron.

youdao

结果将使得电子的阴影和正电子的阴影被分开。

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

youdao

正电子及反粒子的发现。

Positive electron and antiparticle are found.

youdao

转换率依赖于靶材料、靶温度和入射慢正电子能量。

The fraction is dependent on the target material, temperature and incident positron energy.

youdao

正电子放射层析系统（PET）是科学研究的强有力的工具。

PET has become a powerful tool for scientific studies.

youdao

正电子放射层析系统（PET）是科学研究的强有力的工具。

PET has become a powerful tool for scientific studies.

youdao