I don't know the details, read from the post

Jeepster · 2012-09-21 11:01:59Z

I don't know the details, read from the post简介

来源: Jeepster 于 2012-09-21 11:01:59 [档案] [旧帖] [给我悄悄话] 阅读数 : (0 bytes)

本帖于 2012-09-21 17:17:59 时间, 由普通用户 jy101 编辑

回答: 真的？这仪器用的什么原理？用反射波或超声波来测密度？由说的好于 2012-09-21 10:06:17

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