求翻译：各行各业都朝着着更加具体化，更加专业的方向发展，但是国内物流公司的从业人员和各厂大都具有某单一货运业的从业经历，只具有单一的货运知识结构是什么意思？

Businesses are moving in a more concrete, more professional direction, but the domestic logistics companies and the employees of a single plant with most of the freight industry experience of the industry, only a knowledge structure with a single cargo

All trades and industries are moving toward a more specific and more professional direction, the domestic logistics company for practitioners and the factory mostly have a single freight workers in the industry has experienced, and have only a single freight knowledge structure

All the various trades and occupations all face bit by bit even more concrete application, a more specialized direction develops, but the domestic physical distribution company's jobholders and various factories have some sole freight transportation industry to be employed mostly the experience, onl

Every industry towards more specific and more professional way, but domestic logistics companies in China and most of the plant has a single experience of freight forwarding agents, only has a single freight knowledge structure

All trades and professions, towards wear specify further, more professional direction develops, but employee and every factory of the domestic logistics company mostly have experience of obtaining employment of one single freight transportation industry, only have a single freight transportation kno