1. The inner disk and outer disk in the regression of market software refer to "active selling (volume)" and "active buying (volume)", which are the same as stocks.

2. In the analysis of market trend, the internal and external markets refer to domestic and foreign markets.

But it is usually directly replaced by the abbreviation of the country name. For example, the soybeans in the outer disk are mainly American CBOT soybeans, which are generally called "American disk (soybean)" or "American beans"; Copper is traded in COMEX in the United States and LME in the United Kingdom, but the international market mainly refers to the quotation of LME (London Metal Exchange), so when it comes to non-ferrous metal outer disk, it is said to be "London disk" or London copper, London aluminum and so on. ...

3. The above-mentioned soybean price range of 500-800 refers to CBOT soybean quotation, and the unit is "cents/bushel", including various expenses ranging from 2,500-3,500 per ton.