A short position is a short position, which is a trading order with buying price and increasing position;

Changing hands with empty orders is a short-term change of hands, which is a transaction order with the same purchase price and the same position;

Duoping is a long-term liquidation, which is a transaction order with lower purchase price and lower position;

Empty position is an empty position, which is a trading order with selling price and lightening position;

Multi-exchange is a multi-head change of hands, which is a transaction order with the same selling price and the same position;

Open more is long, it is a trading order with selling price, which increases the position.

There are also bilateral positions opening and bilateral positions closing.

Bilateral opening means that the hand equals the increase of the position, and bilateral closing means that the hand equals the decrease of the position.