Pumps shall be capable of continuous operation with minimum maintenance over the full operating range from minimum flow to maximum flow.
水泵须能够连续运行的最低维修较充分的经营范围从最小流量到最大流量。
Pumps shall be capable of continuous operation with minimum maintenance over the full operating range from minimum flow to maximum flow.
水泵须能够连续运行的最低维修较充分的经营范围从最小流量到最大流量。
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