[] 粒

1. According to the theory, matter can only be created in particle-antiparticle pairs.
   依照论，质粒-粒。
2. The symbol used to denote an antiparticle is the same symbol used to denote its normal matter counterpart, but with an overstrike.
   去常粒符号常态质版符号,仅许。
3. If a particle/ antiparticle pair comes in contact with each other, the two annihilate and produce a burst of energy, which may manifest itself in the form of other particles and antiparticles or electromagnetic radiation.
   粒/粒彼,那粒湮灭爆,其粒形粒辐射自身。