Foreign trade volume: Also known as foreign trade value, it is composed of the total imports and total exports of a country or region in a certain period. It is one of the important indicators that reflects the scale of a country's foreign trade. It is generally expressed in internationally accepted currencies.

Foreign trade volume: This indicator excludes the impact of price changes, mainly reflects the status of trade scale, and facilitates comparison of foreign trade volume in different periods.

General trade system: The standard for counting imported and exported goods is based on the passage of goods through national borders. China America

Specialized trade system: The standard for counting imported and exported goods is based on the customs clearance of goods. germany, france

Direct trade (i.e. general trade system): refers to the direct buying and selling of goods by consumer and producer countries.

Entrepot trade (i.e. special trade system): also known as transit trade, refers to the trade activities between consumer countries and producing countries through a third country. (For third countries, it is re-export trade. It is indirect export trade, and for consuming countries, it is indirect import trade.)

Transit trade: refers to trade activities in which goods exported by another country pass through the country's borders, without processing or transformation, and are shipped to another country in basically the same condition. The essential difference between transit trade and re-export trade lies in the establishment of transaction relationships.

Classification of international trade in goods

Classification of international trade in services