【计】 步进法, 按步法, 步时过程
【化】 步进法

step-by-step step by step a thousand-li journey begins with the first step--the highest eminence is to be gained step by step procedure survey procedure predefined procedure integration procedure fallback procedure label procedure cooling procedure initial procedure checkout procedure step-by-step operation step by step exchange step by step welding step-by-step method step by step operation step-by-step accelerator step-by-step selection step by step action step-by-step feed step-by-step decoding step by step switch