英文逗号+空格分隔 ✓ 2. 数量:7个(6-8范围内) ✓ 3. 组成: – 核心品类词:Block Making Machine(来自product_type) – 机型词:QT4-15A(来自designation) – 规格技术词:Platform Vibration
December 18, 2025
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