Issue qty vs receipt qty

Also can some one explain me the difference between these 2 quantities . And what does these below objects mean:

Receipt Quantity - Stock in Transit

Issue Quantity - Stock in Transit

Receipt Quantity - Total Stock

Issue Quantity - Total Stock

Issue Quantity - Scrap

Issue Value - Scrap

Issue Quantity - Blocked Stock

Issue Quantity - Consignment Stock

Issue Quantity - Inspection Stock

Thanks