Only the Up and Down quarks are found inside atoms of the normal matter. The other quarks are made in particle accelerators.
普通正常物质的原子内部只有上、下夸克。而其它夸克是由粒子加速器产生的。
Other devices that utilize electromagnets include particle accelerators, telephone receivers, loudspeakers, and televisions.
其它利用电磁铁的装置有粒子加速器、电话听筒、扬声器和电视。
Other devices that utilize electromagnets include particle accelerators, telephone receivers, loudspeakers, and televisions.
其它利用电磁铁的装置有粒子加速器、电话听筒、扬声器和电视。
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