Complex sentence: The grain bed is maintained at a constant temperature of between 10 and 16 ° C by the constant supply of fresh humidified air and turners move through the grain bed to keep it loose to allow for sufficient air-flow.
Split into simpler sentences: The grain bed is maintained at a constant temperature of between 10 and 16 ° C by the constant supply of fresh humidified air. Turners move through the grain bed to keep it loose to allow for sufficient air-flow.