概述随着国民经济的发展,尤其是在石油化工生产中,经常会遇到某些粘度大、带有固体悬浮物、液化气液体以及易自聚易结晶等流体,对于这些特殊介质的测量,在设计和生产领域里已成为一个突出的问题,并引起了广泛的重视,这就牵涉到怎样比较合理正确地选用仪表的问题。在这 Overview With the development of the national economy, especially in the petrochemical production, often encounter some of the viscosity, with solid suspended solids, liquefied gas liquids and easy to self-polycrystal fluid, for the measurement of these special media, Has become a prominent issue in the field of design and production, and has attracted a wide range of attention, which involves how to use the instrument more reasonable and correct question. At this