“反物质”用英语怎么说？

还有那些人们不大谈到的, 构想更为新奇的 反 物质武器和脑弹的设计.There are the much less talked - about, more exotic designs for anti - matter weapons and brain bombs.银河中心之外, 反物质云不是完整的球形.Beyond galactic centre, the cloud is not entirely spherical.存在的对...