When calculating characteristic curve and putting line curve of HV transmission lines, the maximum working stress σ M of conductor is usually determined according to the "experience method", which has a lot of weakness.
在输电线路特性曲线、放线曲线计算时 ,通常根据“经验法”确定导线最大使用应力σM,存在着很多的缺点。
Materials of forged steel roll for cold rolling wide strip and its application;
宽带钢锻钢冷轧辊的材质与使用
Features of all kinds of hard alloy cu ts and its application and mainternance;
硬质合金刀具的特点·使用·维护
Research and application of topside valve house of pump plunger;
抽油泵活塞上阀罩的改进与使用
The caution of process planning usage and maintenance for the screw and barrel of single screw plastic extruder;
单螺杆塑料挤出机螺杆、机筒工艺编制和使用、维修中注意事项
Complement Usage and Management of Ring and Ring Traveler;
钢领钢丝圈的配套使用和管理
Steam usage and control in factory;
轮胎厂蒸汽的生产使用和管理
The use and maintenance of Ni-P electroless plating solution in the mining machine production;
化学镀镍—磷液在采矿机械生产中的使用与维护
Safe management and use of logging truck tyres;
木材运输汽车轮胎的安全管理与使用
The operation and maintenance of LF70 PVC polymerizer;
LF70型PVC聚合釜的使用与维护
Packaging operation and maintenance of drill rig engine;
谈钻机柴油机的配套和使用
Operation and Maintenance of Large Scale Waste Transfer Station;
大型垃圾转运站设备的使用与维护