The electronic futures market seems to refer to the spot market. Only the varieties of Shanghai Dazheng Stock Exchange are legally futures, others are made by spot traders themselves, such as Ding Long, which are not real futures. These things are not regulated by law, and bookmakers control the market very seriously.

The outer disk and the inner disk have two meanings. One is that the external market refers to the foreign market and the internal market refers to the domestic market.

2:

Entrust the seller to enter the "outer disk" and entrust the buyer to enter the "inner disk"