求翻译：国际贸易原理是国际贸易各种知识体系的理论综合。国际贸易原理源于国际贸易实务，是对国际贸易实务经验的概括和总结，也是对国际贸易实务中具体的实践活动、实践经验和实践成果的反思、矫正和引导。是什么意思？

International trade theory, international trade theory of integrated knowledge systems. Principles derived from international trade, international trade practices, practical experience of international trade, the summary and conclusion, but also on the international trade practice of specific practi

International trade theory, international trade theory of integrated systems of knowledge. International trade theory originated from substantive and practical experience of international trade is a generalization and a summary of international trade practice, and is also the practice in specific ac

The international trade principle is the international trade each kind of knowledge system theory synthesis.The international trade principle source in the international trade practice, is to the international trade practice experience summary and the summary, also is to the international trade prac

正在翻译，请等待...

The international trade principle is that theories of different knowledge systems of international trade are synthesized. The international trade principle comes from the practice of international trade, it is generalizations and summaries to the practice experience of international trade, it is int