一直有中国和外国公司要为中国空军升级初教六，都未成功。初教六实在太便宜了，连改进的钱都显得贵。大概不超过三十万人民币。

来源: thore 于 2025-11-04 07:55:49 [旧帖] [给我悄悄话] 本文已被阅读：次

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