their antimatter counterparts
它们的反物质对应体
以上为机器翻译结果，长、整句建议使用 人工翻译 。
This makes the void fizz with activity, as particles and their antimatter counterparts zip in and out of existence.
这使得“空”间变得热闹非凡：粒子和它们的反物质（译者注：是一种能量）匆忙进出于“空”间，存在或消失（译者注：从粒子变成能量, 或由能量生成粒子）。
youdao
B-mesons to turn into their antimatter counterparts and back again, a process known as mixing.
ECONOMIST: Cosmology and particle physics
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