Excellent regulation characteristics: V-type valve has a similar inherent equal percentage flow characteristic and adjustable up to 300:1 ratio.
具有出色的调节特性：V型阀具有一个近似等百分比的固有流量特性及高达300：1的可调比。
2
In the paper, the outside magnetic driving system of blood pump based on single chip AT89S52 is introduced, which has good speed regulationcharacteristic and control performance.
该文介绍了以单片机at89s52为控制单元的血泵外磁驱动系统，该系统具有良好的调速性能和控制性能。
3
OBJECTIVE: To analyze the study result of biological characteristic and regulation of differentiation of skin stem cells.