Noise hazard. Ear protectors must be worn. -High decibel noise, pay attention to ear protection.

Moving parts may be crushed and cut. Get the guards in position. -Moving parts can crush and cut people, so please keep the protective facilities in a protective state.

I used to sell injection molding machines and foreign trade. If it is a machine tool, you can say, "The moving parts of the machine tool will be injured." ........