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经营范围
发明名称
摘要
PURPOSE:To provide high precision measurement of gas density by high frequency revolution of a polarizing plane with magnets arranged on a laser tube.
申请公布号
JPS5625967(B2)
申请公布日期
1981.06.16
申请号
JP19750061673
申请日期
1975.05.20
申请人
发明人
分类号
G01J3/42;G01N21/39
主分类号
G01J3/42
代理机构
代理人
主权项
地址
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