... 3.2 可运行的 operational 3.3 优先电源preferred power supply 3.4 备用电源 standby power supply ...
2
?优先电力供应
... 优先电路，优先次序电路：priority circuit 优先电力供应(供电)：preferred power supply 优先的，优惠的：preferential ...
双语例句
1
At present the large diameter slurry pipe jacking is the preferred construction method in project of urban water supply and drainage pipe and electric power pipe.