The connecting cable from the ground rod to the SG bus bars in PDP cabinet is equal to100 Square millimeters or larger ?

安全地接地极与PDP中安全地汇流母线的连接电缆大于等于100平方毫米?。

The expression for short-circuit electrodynamic force of rectangular bus bars on the basis of the calculation of three-phase symmetry short-circuit current was fi.

本文首先根据系统发生三相对称短路时的短路电流，给出了三相矩形母线短路电动力的解析表达式。

Several kinds of non-wastage connection bus bars, which are being developed, will also be substituted for imported materials and put into use in upgrading electric cabinet.

正在开发的几种无损连接母线，也将取代先进口材料，用于更新换代的新型电柜。

Good earthquake resistance. commonly, mechanical connectors for bus-bars will become flexible after the wall shakes because of earthquake, but the wall shakes have no effect on the branch cable.

优良的抗震性，一般机械连接母线槽接头，在墙体受震动后会发生接头松动，而预制分支电缆不会受到影响。

Smoke-free zones by law include beaches, most public parks, bus stops, bars and restaurants, etc. ; and these bans are enforced by uniformed "smoke police" (my term) who slap offenders with fines.

法定禁烟区已经扩大到海滩、大多数公园、公交车站、酒吧餐馆等，还有专门的“烟警“（我给起的名字）负责给违规者开罚单。