operation and maintenance phase

基本解釋

And the utility model can avoid detaching the drum when exchanges phase dam, with compact structure, stable operation, easy application and maintenance, for producing large device.
更換相堰時不用拆卸轉(zhuǎn)鼓，結(jié)構(gòu)緊湊，運行穩(wěn)定，在使用、維修等方面更加合理，更適用于制造大型設(shè)備。
ip.com
The solution on clock synchronization composes with GPS, operation maintenance, software locking phase control. And the last one is researched specially, and some test data are given.
本時鐘同步管理方案由GPS通信模塊、操作維護、軟件控制管理三部分組成，重點研究了軟件鎖相控制算法，并給出了測試數(shù)據(jù)。