Yes, it earned $ 100W and then used it to buy equipment. On the surface, this is the case, but there is a problem here, that is, the foreign exchange obtained by enterprises must be sold to foreign exchange banks, and then purchased from foreign exchange banks when they need to import foreign exchange, so enterprises cannot directly hold foreign exchange. Therefore, in this issue, the enterprise involves two exchanges with inconsistent time. If certain measures are not taken, it will cause losses (or gains) of exchange rate changes, and it is necessary to control risks through market operations.