Current location - Recipe Complete Network - Food world - At the barbecue food street, sanitation workers use detergent to wash away the oil stains on the floor every day. Otherwise, oil stains will cause pedestrians to slip accidentally because
At the barbecue food street, sanitation workers use detergent to wash away the oil stains on the floor every day. Otherwise, oil stains will cause pedestrians to slip accidentally because
Since oil stains can cause pedestrians to slip accidentally, oil stains reduce friction; the bristles of flies increase friction so that flies are not troubled.