平衡

In optimization design of the slide-valve pump, we break through the usual method of adding outer clump weight or balance wheel, and adopt the method of changing the inner structure and add inner clump weight to optimize the pump's vibration balance.

在优化设计中，我们突破以往采用的外加配重块或平衡轮来平衡惯性力的方法，通过改变滑阀真空泵内部结构及添加内平衡块的方法对滑阀真空泵进行振动平衡优化。

Steelmaking, continuous casting and hot strip rolling are three main procedures in steel manufacturing process. They have not only problem of material-flowing balance and resource balance, but also problems of energy balance and time balance.

炼钢－连铸－热轧作为钢铁生产流程中的三大关键工序，它们之间不仅存在物流平衡和资源平衡问题，而且存在能量平衡和时间平衡问题。

The causes of three-phase unbalance of distribution network is roughly divided into two types. One kind is caused by the unbalanced power supplied link system, another kind is caused by the load of the asymmetric three-phase unbalance system.

配电网三相不平衡产生的原因大致分为两类，一类是由供电环节不平衡引起的系统三相不平衡，另一类是由负荷的不对称引起的系统三相不平衡。