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In the same series of most types of pump air motor are interchangeable.
在同一系列里的大多数型号的泵的空气马达是可互换的。
youdao
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The speed control problem of a series dc motor is considered.
讨论直流串激电机的速度控制问题。
youdao
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The speed control problem of a series dc motor is considered.
讨论直流串激电机的速度控制问题。
youdao