Ensure words are spelled correctly. Try rephrasing keywords or using synonyms. Try less specific keywords. Make your queries as concise as possible.

Ensure words are spelled correctly. Try rephrasing keywords or using synonyms. Try less specific keywords. Make your queries as concise as possible.

整体上，材料成本仍是主要驱动因素，行业企业需关注原材料价格波动及其对成本结构的影响，同时优化人工和制造费用的管理，以提升成本效益。 ——中国汽车零部件价格传导机制：受上游原材料成本波动和下游市场需求变化双重影响 汽车的零部件组成部分 ...