n.音调测定器；音叉；血压计
At whose blood pressure measuring is the earliest tonometer used? 最早的血压计用于测量谁的血压？
Accordingly, doctors think the accuracy of mercuric tonometer wants to compare electronic tonometer generally tall. 因此，医生们普遍认为水银血压计的准确度要比电子血压计高。
