potential difference势差: potential difference磁势差: magnetic potential difference电势差: difference of potential; electric potential difference; emdp; voltage difference跌势差: downside deviation劣势差: inferiority gradient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:们势差,即可在微信中查询翻译