blade passage rate叶: leaf; foliage道: road; way; route; path率: rate; ratio; proportion叶道友: ye daoyou绝对磁道率: absolute permeability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:叶道率，即可在微信中查询翻译
