isochrones

Through K-Ar isotope age study in pillow basalt,has gained the isochrone age is 139Ma.The age is the formation age of pillow basalt.

在枕状玄武岩中获得K-Ar（全岩）同素年龄为139Ma（测试：昌地质矿产所同素室），因此确定其时代为晚侏罗世晚期。

Isochrones were displayed both during sinus rhythm and AF.Results During sinus rhythm,the atrial excitation wave front begins from sinus node spreading to right atrium(RA)and left atrium(LA).

在开胸状态下，使自制的外膜标测电极及信号采集系统分别对窦性律及急性房颤律房外膜标测，绘制等时图。