production year短语¹¹⁴⁴⁶⁷⁺⁴ 基本例句 经济年度 With the increasing rate of the alkaline battery production year-by- year, foreign battery corporations worked hard to improve the battery performances including techniques, material and equipment. 在碱性化率逐年提高的情况下，国外电池公司在努力提高电池的性能，包括工艺。材料和设备的改进。 cnki