long ineffective ventricular cycle长: older; elder; senior无效: of no avail; to no avail; in ...心室: ventricle; heart chamber; he ...周期: period; cycle; circle; revol ...心室周期长度: ventricular cycle length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:长无效心室周期,即可在微信中查询翻译