长征中的机要工作是在极其艰难的情况下进行的,物资供应和工作条件都很困难。红军离开了原来的根据地,群众基础、交通条件都受到很大影响。因此,部队行动、作战命令、情报传递和上下左右的联系,全靠无线电密码通信联络,工作量非常大。但是在党的教育和领导下,机要战士艰苦奋斗、兢兢业业,克服了一个又一个困难,保卫了党的机密,完成了长征中的密码通信任务,在伟大的长征中作出了 The confidential work in the Long March was carried out in extremely difficult circumstances, with material supply and working conditions both difficult. The Red Army left the original base area, mass base and traffic conditions were greatly affected. Therefore, troop movements, combat orders, intelligence transmission and links up and down, all rely on radio password communication, the workload is very large. However, under the education and leadership of the party, the confidential fighters worked hard, worked conscientiously and one after another, overcame one difficulty after another, defended the party’s secrets, completed the task of cipher communication in the Long March and made the great long march