一个连续性测试器给电缆导线注入交流信号，从而找到电路故障。
A continuity tester injects an AC signal into the conductors of a cable to find circuit faults.
本发明涉及一种密封装置，尤其是涉及一种专用于电缆导线的橡胶线硫化密封装置。
The invention relates to a sealing device, in particular to a rubber covered wire vulcanization sealing device special for cable conductors, which comprises a sealing body.
为对抗光纤服务，电缆公司已经将光导线路铺设到区域接点，人们可以通过现有电缆把网络连入家中。
To counter FiOS, the cable companies have run fibre to the neighbourhood node, from where the connection continues to the home through their existing cable.
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