1. Radiation protection, sometimes called radiation protection, is a science to protect people and the environment from the harmful effects of ionizing radiation.

Radiation protection, usually called radiation protection, is a science to protect human beings and the environment from ionizing radiation.

2. Radiation protection can be divided into occupational radiation protection, medical radiation protection and public radiation protection.

Radiation protection is divided into occupational radiation protection, medical occupational protection and public radiation protection.

3. The types of exposure and the exposure limits stipulated by government regulations and laws are different for each group, so they must be considered separately.

These exposure types are different, and at the same time, government regulations have different requirements for the restrictions on these exposure types, which should be treated differently.

4. An example of reducing radiation dose by reducing exposure time may be to improve operator training to reduce the time they spend handling radioactive sources.

Reduce radiation damage by reducing exposure time, for example, by training operators to reduce the time of operating pollution sources.

The term "biological barrier" refers to a large amount of absorbing materials placed around reactors or other radioactive sources to reduce radiation to a level safe for human beings.

Biological shielding refers to placing a lot of materials around the reactor or reactor source to absorb radiation and improve the safety factor for human beings.