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.
由于补偿导线和热电偶的热电级材料并不完全相同,所以要求它们连接处两接点温度相同,否则又会引入误差。
Since the electrode material of compensating wire and cable and thermocouple are different, the two contacts at the connection must be at the same temperature to avoid further error.
表中双接点连接导线为:接点2为下限设定点,接点1为上限;设定点,接点3为公共端。
Leads of single double contacts: lower limits is contact 2, upper limits setpoint is contact 1, contact 3 is public port.
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