三相三线制不平衡系统
3-wire and 3-phase unbalance system
岸线平衡形态模式
shoreline erosion equilibrium form
拆卸线平衡
disassembly line balancing
冲制平衡块模具的改进
Improvement on Die for Punched Counter Balance
非平衡线性区
Non-equilibrium linear region
共线平衡点
collinear libration point