Iron and steel product prices fell and production dropped significantly affect the apportionment of fixed costs, resulting in a gross margin of iron and steel products decreased significantly.是什么意思_Iron and steel product prices fell and production dropped significantly affect the apportionment of fixed costs, resulting in a gross margin of iron and steel products decreased significantly.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句