注：（1）公称流量是水表在规定误差限内允许长期工作的流量。

Note:(1)Rated flux is the permitted flux in the long work situation for the water meter.

youdao

注：（1）公称流量是水表在规定误差限内允许长期工作的流量。

Note:(1)Rated flux is the permitted flux in the long work situation for the water meter.

youdao