请问图中液位计LG-M中的M是啥意思? 仪表工程师手册有这样的注释: readout/passive function [g] (glass, gauge) is shown for local direct connected devices, such as flow sight glasses, level glasses, pressure gauges, and thermometers, and also for weigh scales and position indicators. these devices provide a simple view of a process condition. the readout/passive function [i] (indicate) may continue to be used in facilities where it is currently used. 由此可见,就地表用g比i更为合理。查看更多