span step response time rating量程: measurement range; measuring ...间距: interval; separation; spacin ...反应: neaction时间: time; hour短时间额定: short-time rating下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:量程间距反应时间额定值,即可在微信中查询翻译