coulomb
noun [ C ] physics specialized uk/ˈkuː.lɒm/ us/ˈkuː.lɑːm/
库仑（电荷单位，相当于一安培电流一秒中内所传送的电荷量）
the standard unit of measurement for electric charge, representing the charge carried by one ampere (= unit of electric current) in one second