... 理论输送量output in theory 泵送能力指数index of the pump carry capacity 理论泵送压力theoretic pumping pressure ...
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The expressions of the Fourior series corresponding to these waves were derived and it is possible to analyse the harmonic contents of PWM inverter output in theory.
较严格的数学推导过程，为理论上对逆变器输出的谐波成分计算分析提供了依据。
In theory a rise in farm output should boost nutrition by more than a comparable rise in general economic well-being, measured by GDP.
从理论上讲，农业产出增加比相应比例的总体经济增长(如gdp的增加)要更有利于促进营养。
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