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词汇
.ph
释义
.ph
.piː 'eɪtʃ
abbr.
=public health公共卫生
n.
pH 值溶液或物质的酸碱度。pH 值介于 0 至 14，7 以下为酸，7 以上为碱🌏硷值；酸度；氢离子浓度
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frequency centre
frequency chain
frequency change
frequency-changeable
frequency changeable OCC
frequency change and speed control
frequency changed to adjust rev
frequency changement
frequency-change oscillator
frequency-changeover switch
frequency change-over switch
frequency-change-over switch
frequencychanger
frequency changer speed governing
frequency-changer, static
frequency changer station
frequency changer substation
frequency changer with constant voltage
frequency change signaling
frequency-change signaling
frequency change signalling
frequency-change signalling
frequency-change speeding
frequency change synchronization
Frequency Changing
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更新时间：2026/7/4 13:58:45