1. Business service industry refers to the industry division that provides services for enterprises. Professional technical service refers to the modern service industry composed of institutions that provide professional and scientific service activities for customers or society.
2. Business services include legal services, business travel services, information consultation, advertising services, public relations services, education and training, franchising, financial services, insurance and wealth management. Professional technical services include meteorological services, earthquake services, marine services, surveying and mapping services, technical inspection, environmental monitoring, engineering technology and planning management, engineering management services, engineering survey and design, planning management and other professional technical services.