It comprises of four parts, namely: flow limitation hole, focus ring, electrode ring and nozzle.
它包括四个部分：限流孔、聚焦环、电极环以及喷嘴。
EMF5000 electromagnetic flowmeter with four electrodes, The built-in grounding electrode, For non conductive pipe without additional power connection ring.
EMF5000电磁流量计采用四电极，内置接地电极，用于非导电管道无需另加接电环。
Then use the coil ring machine rolled into a circle, with the electrode to weld the interface firmly, welding mouth to carry out X spectroscopy.
然后用卷环机卷制成圆圈，用焊条把接口处焊接牢固，焊口处要进行X光谱检验。
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