aa1534_0039 4 250 90000 aa1534_0039.dat 16 871.4406540738653(-1857)/mV 16 0 -1700 28451 0 II aa1534_0039.dat 16 1718.239625167336(18574)/mV 16 0 -32768 40693 0 III aa1534_0039.dat 16 805.473427000611(197)/mV 16 0 56 7694 0 aVR aa1534_0039.dat 16 804.679802955665(-97)/mV 16 0 4 64668 0 V