qǐyè / gòumǎi / qīhuò / jìnxíng / tào qī bǎo zhí / yǐ / guībì / yuáncáiliào / jiàgé / shàngzhǎng / de / fēngxiǎn企业购买期货进行套期保值,以规避原材料价格上涨的风险。Enterprises buy futures for hedging to avoid the risk of rising raw material prices.