备机 meaning in Chinese

sbe stand by engine

To shorten the time - delay of active / standby switching in the fault tolerance system , an active / standby fast - switching system was designed
摘要针对现有容错系统中主备机切换过程时延较大的问题，设计了一种主备机快速切换的容错系统。
In this system , the active and the standby used the same ip and mac address in order to receive the network data simultaneously , however , the standby was prohibited to send any network data , both processes were transparent to upper layers
在该系统中，主备机使用相同ip地址和mac地址，它们同时接收网络数据，但备机不发送任何网络数据，且该过程对上层应用透明。
To compare with transistor ( complete solid - state ) high - frequency linear power amplifier , there are some disadvantages : bad stability and reliability , low efficiency , high cost for operating , huge cabinet , heavy maintenance work load , low security for high - voltage electricity offering , and to ensure the continuance of tv program , the transmitter must be operating with main frame and spare frame
它们与晶体管(全固态)高频线性功率放大器相比，存在着稳定性及可靠性差、效率低、运行费用高、发射机体积大、日常维护工作量大、高压供电不安全、必须采用主机和备机的运行方式来确保电视节目不停播等缺点。