Spiral staircase with patterned railings in gray and black tonesSpiral staircase with patterned railings in gray and black tones
Air transport with a photographer recording what is happening in the airAir transport with a photographer recording what is happening in the air
Совокупность процессов обработки или переработки материалов в определённой отрасли производства, а также научное описание способов производства.