故障单元 meaning in Chinese

trouble unit

The range - finding and aiming device is an important component of the self - propelled gun fire - control system , which is consisted of pulse liquid lazer , an automatic mounting unit with step by step motor , and a master controller box specified for information control and management , etc . modern warfare requires a low rate of weapon malfunction and consequent stoppage
自行火炮测瞄装置是自行火炮火控系统的重要组成部分，它由脉冲固体激光器带步进电机的自动装表机构和一个以信息处理和控制为中心的主控箱等组成。现代战争要求武器装备要有一个尽量小的故障发生率和故障停机率，一旦发生故障，要求维修人员能迅速准确地判断故障单元和故障性质。