stepout英stə'paʊt美stə'paʊtBNC²³⁶²¹³⁺¹ 基本例句 n.失调失步 Based on analyzing hydraulic stepout and heating power stepout took place in hot water heating system indoor, the improvement plan is presented in this paper. 分析了室内热水采暖几种系统中经常出现的水力失调、热力失调问题，并提出了相应的对策意见。 cnki