Thisprotector is compact, small and cheap and is an ideal safetyapparatus for the power sup-ply network of local small coal mines.
装置具有结构紧凑、体积小、价格便宜等特点，是乡镇小型煤矿供电网络较理想的安全装备。
2
It also tells some advanced techniques by several world known automobile manufacturers in such areas as materials, safetyapparatus and anti -theft system.
介绍了世界上一些著名汽车公司在汽车材料、安全装置、防盗系统等方面的先进技术。
3
The safety length to connect apparatus component and load cable was calculated and given.