求翻译：目前老式回转烘干系统存在的问题：一类为由转筒烘干机本身引起的因素，包括扬料板、烘干机的转速、烘干机筒体的隔热保温；另一类为烘干工艺方面的因素，包括热空气的流速、热空气的温度、热风炉、进料粒度和进料均匀程度、物料的结构和性质、干燥设备的操作。是什么意思？

The problems of old-fashioned rotary drying system: the grounds of the dryer drum itself is the cause of factors, including the lifting plate, the speed of the dryer, the dryer cylinder insulation; the other for drying dry process factors, including the operation of the structure and nature of the h

At present there is an old swing drying systems: one for the dryer itself is the cause and the factors, including speaker of the Board, clothes dryer, clothes dryer and speed of heat insulation, and the drying process of factors, including the hot air flow rate, air temperature, hot hot air furnace,

At present old style rotation drying system existence question: A kind for the factor which causes by tumbler dryer itself, including raises the yard lumber, the dryer rotational speed, the drying cylinder body heat insulation heat preservation; Another kind for drying craft aspect factor, including

Currently old Rotary drying system exists of problem: class for by go tube drying machine itself caused of factors, including Yang material Board, and drying machine of speed, and drying machine tube body of insulation insulation; another class for drying technology area of factors, including hot ai

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