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公开(公告)号：US3816004A
公开(公告)日：1974-06-11
申请号：US25737072
申请日：1972-05-26
Applicant: SNAM PROGETTI
Inventor： BIGNARDI L
CPC classification number: G01N21/534
Abstract: An improved device for measuring the opacity of gases has been disclosed which utilizes a photoelectric optical system and an orthogonally positioned Venturi tube to monitor the opacity of gases.
Abstract translation: 已经公开了一种用于测量气体不透明度的改进装置，其利用光电光学系统和正交定位的文丘里管来监测气体的不透明度。
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