The condition and composition of this signal transmission structure, supply of the field meter with power, distant transmission of signal and the explosion-safe problem are discussed in this paper.
本文对其应满足的条件、结构，现场仪表的供电、信号远传及防爆等问题做了较详细论述。
The condition and composition of this signal transmission structure, supply of the field meter with power, distant transmission of signal and the explosion-safe problem are dis...
本文对其应满足的条件、结构，现场仪表的供电、信号远传及防爆等问题做了较详细论述。
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