七月份才开始测氡气，发现天气冷了以后一直要100左右，也想装排氡气的装置，请问工程复杂吗？大概费用多少？

来源: mfsiv 于 2024-10-18 05:36:27 [旧帖] [给我悄悄话] 本文已被阅读：次

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