| http://www.w3.org/ns/prov#value | - Therefore, stainless steel has been considered to be most suitable for the material of the conduit pipe but is not only rather costly but also must be coated on the inside surface of the pipe with such insulator as a synthetic resin or glass so as to insulate the inside surface from the liquid to be measured. (3) Statistically almost all of the troubles in the transmitter for the electromagnetic f
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