Use of helical gear in gear pump is an effective measure, which can reduce the mechanical voice and flowpulse.
齿轮油泵采用斜齿轮是降低机械噪声和减小流量脉动的一种有效措施。
2
Objective:To evaluate the veracity and applicability of the finger volume blood flowpulse method in cardiovascular function monitoring.
目的：评价指端容积脉搏曲线法进行心血管功能监测的准确性和适用性。
3
Two-time flowpulse transition is put forward to compensate the pulse count, by this method the flowpulse is sum up to assure fill precisely in large volume.