... step-pulsed welding 步进脉冲焊 step-rate prepayment meter 分级预付电度计 step-reaction 逐步反应 ...
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single rate prepayment meter 单率预付费用电表
two-part step-rate prepayment meter [电] 两部阶跃预付电度计
load rate prepayment meter 根据负荷率预付电费电表
step-rate prepayment meter 分级预付电度计
two-rate two-part prepayment meter [电] 双价率两部电度预付计
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