详细解释:【医】 体积描记器
词型变化：
名词:plethysmography副词:plethysmographically形容词:plethysmographic英语解释：
名词 plethysmograph:
a measuring instrument for measuring changes in volume of a part or organ or whole body (usually resulting from fluctuations in the amount of blood it contains)例句：
A record or tracing produced by a plethysmograph.体积描记图由体积描记器作出的记录或轨迹