它们被称为虚粒子以便与实粒子区分开来而实粒子则不会以这种方式受到制约并且其存在可得以测定
They are called virtual particles in order to distinguish them from real particles which are not constrained in this way and whose existence can be determined
以上为机器翻译结果，长、整句建议使用 人工翻译 。
应用推荐
模块上移
模块下移
不移动