The reduction temperature had little effect on the bulk structure of catalysts.
还原温度对磷化的工业催化剂的体相结构影响很小；
Describes the principle and structure of the control system of reduction massage appliance.
论述牵引整复按摩机控制系统的原理和结构。
Describes the principle and structure of the control system of reduction massage appliance.
论述牵引整复按摩机控制系统的原理和结构。
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