408CMXL 仪器不能触发Macha编码器故障一例

乐法毅,刘善举,王景红,王爱军,代伟明

A case of f ailure of 408CMXL seismograph unable to trigger Macha encoder

Le Fayi ,Liu Shanju ,Wang Jinghong ,Wang Aijun，Dai Weiming