发布时间:2025-02-03 11:38:58
高压计量采用的是额定电压为100V额定电流5A的电度表,实际用电量等于电度表抄见电量乘以电压互感器变比(10KV为100)乘以电流互感器变比。
haier47海尔 hro4h563 ro反渗透双出水直饮机 适用对象
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