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超越不可能的“航天精度”
Zhong Guo Xin Wen Wang· 2025-12-27 01:54
叶辉,新中国第二代研磨师,二十多年只磨一事——将"中国精度"推向极致。从学徒三年苦练研磨平板,到受伤断筋仍选择坚守,他以纳米级精度打 磨"尺子的尺子"。面对国外嘲讽"中国人永远造不出这种精度",他霸气回应:那就拿活儿说话。如今,他仍在不断刷新精度极限。星空尽头,是中国 航天的征途,也是他的匠心所向。 ...
“度”量中国这五年:毫厘之间铸造“中国精度”
Zhong Guo Xin Wen Wang· 2025-10-18 11:01
Core Insights - The article emphasizes the significant advancements in China's high-end manufacturing sector, highlighting the concept of "Chinese Precision" as a key driver of development during the "14th Five-Year Plan" period [1][2]. Group 1: Manufacturing Precision - A high-precision CNC machine in Shandong produced 127 needle-shaped specimens with a diameter of 0.05 mm from a 30 mm metal rod, showcasing the level of precision achieved in Chinese manufacturing [1]. - The establishment of a large-length reference device in China, with a measurement range of 80 meters and an error margin of only 2.45 micrometers, represents a significant advancement in precision measurement technology [2]. Group 2: Applications in Aerospace and Navigation - The new large-length reference device enhances the precision and reliability of measurements for key components in large equipment, such as spacecraft docking and aircraft assembly, contributing to high-quality development in manufacturing [2]. - The successful launch of the 59th and 60th BeiDou navigation satellites demonstrates the importance of precision in modern transportation, where time and spatial accuracy are critical [4]. Group 3: Expansion of BeiDou System - The BeiDou ground-based augmentation system has been established to provide real-time high-precision positioning services, expanding its applications from traditional surveying to areas like precision agriculture and autonomous driving [5]. - The application rate of the BeiDou system in key transportation sectors has exceeded expectations during the "14th Five-Year Plan" period, indicating its growing importance [4][5]. Group 4: Future Developments - The "Measurement Support for New Quality Production Power Development Action Plan (2025-2030)" aims to address critical measurement issues in industrial development, indicating a continued focus on precision [6]. - The upcoming "15th Five-Year Plan" is expected to further enhance "Chinese Precision," injecting new vitality into industrial development and propelling the economy to higher levels [6].