Explanation of the statement:
The statement means that some particles that carry a positive charge have a charge that is a multiple of the fundamental unit of electrical charge. The fundamental unit of electrical charge is the charge carried by a proton or an electron. This means that some particles have a charge that is equal to the charge on multiple protons or electrons.

Fundamental unit of electrical charge:
The fundamental unit of electrical charge is the charge carried by a proton or an electron. The charge on a proton is positive, while the charge on an electron is negative. The magnitude of the charge on a proton or an electron is the same, and it is equal to 1.6 x 10^-19 Coulombs.

Examples of particles with multiple charges:
Some particles that carry a multiple of the fundamental unit of electrical charge are:

- Alpha particles: Alpha particles are positively charged particles that consist of two protons and two neutrons. The charge on an alpha particle is equal to the charge on two protons, which is twice the fundamental unit of electrical charge.
- Positrons: Positrons are positively charged particles that are the antiparticles of electrons. The charge on a positron is equal in magnitude but opposite in sign to the charge on an electron, which is one fundamental unit of electrical charge.
- Protons: Protons are positively charged particles that are found in the nucleus of an atom. The charge on a proton is equal to one fundamental unit of electrical charge.

Conclusion:
In conclusion, the statement means that some particles carry a charge that is a multiple of the fundamental unit of electrical charge. Examples of such particles include alpha particles, positrons, and protons. The fundamental unit of electrical charge is the charge carried by a proton or an electron, and it is equal to 1.6 x 10^-19 Coulombs.