English translation for "封井作业"

capping operation

Similar Words：

"封井" English translation, "封井管" English translation, "封井器" English translation, "封井头" English translation, "封井眼闸板" English translation, "封局" English translation, "封局续弈日" English translation, "封局续奕日" English translation, "封咀" English translation, "封爵" English translation