Illustration of a proton and a neutron, subatomic particles composed of quarks. A proton consists of two up quarks and one down quark and a neutron has two down quarks and one up quark.
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Details
Creative#:
TOP22304157
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N/A
Property Release:
No
Right to Privacy:
No
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