供应量是指任何待售商品的总量。
需求量是世界需要和能买得起的商品的总量。
The demand is the sum total the world wants and can afford to pay for.
研究预测国内外市场状况，负责重要商品的总量平衡和调控。
Forecast domestic and foreign market direction and control gross balance of key commodities.
研究预测国内外市场状况，负责重要商品的总量平衡和调控。
Forecast domestic and foreign market direction and control gross balance of key commodities.
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