求翻译：本文作者以中国为例，以国际贸易理论和国际投资理论为理论基础，从对外贸易、对外投资和对外金融三个方面对开放度加以度量是什么意思？

The author, for example, to the theory of international trade and international investment theory as the theoretical basis from foreign trade, foreign investment and foreign financial openness to measure

The author of this article to China for example, in international trade theory and international investment theory, based on the theory from foreign trade, foreign investment, and external financial 3 aspects of openness be measured

This article author take China as an example, take the international trade theory and the international investment theory as the rationale, from the foreign trade, the foreign investment and the foreign financial three aspects measures to degree of openness

The writer in China, for example, the theoretical basis of the theory of international trade and international investment theory, foreign trade, foreign investment and external financial openness three aspects to be measured

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