| 1. | Gasket grooves and folds for cast - metal cable fittings 铸造金属电缆接头用垫片槽和褶皱 |
| 2. | Cast - metal cable sheathes for accessories 附件的金属浇铸电缆铠装 |
| 3. | Metal cable tray installation guidelines 金属电缆板安装导则 |
| 4. | Metal cable tray systems 金属电缆托架系统 |
| 5. | Single cables may be fixed by clips welded to structures ; cables in groups are supported by metal cable hangers 单根电缆可用焊在结构上的电缆夹头;成组电缆用金属电缆悬挂架。 |
| 6. | A low - resistance electrical connection between conducting structures such as racks and metal cable sheaths , made in order to keep them at the same potential , usually that of the earth 导电构件间的一种低阻电连接,如机箱和金属电缆壳之间,以使其保持相同电位,通常为大地电位。 |
| 7. | It is called a cable car because the car is moved along by a loop of metal cable running continuously in a slot beneath the ground , powered by a steam - driven engine in a powerhouse 之所以被称为缆车,是因为这种车辆是以一圈圈的金属缆线所拉扯,在地面翼缝上行驶著,主要的动力来源是蒸汽引擎。 |
| 8. | A large percentage of manholes are usually flooded , and some corrosive pollutants containing in the flooded manhole may corrode the metal cable closure and therefore cause severe problem in the telephone cable plant 由于大多数的人孔经常充满来自于周围环境的地下水,若有侵蚀性物质意外流入人孔,可能导致人孔内之铅管接头加速腐蚀而影响其长期使用的安定性。 |