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作者强调金属材料和机电产品的普冷低温实验研究工作的重要性。探讨其主要技术问题、机电产品不适应低温环境所产生的严重后果以及开展这项研究的重要意义。
The author emphasizes the importance of experimental work on cold and cold temperatures for metallic materials and electromechanical products. To discuss its main technical problems, mechanical and electrical products do not meet the serious consequences of low-temperature environment and the significance of carrying out this study.