What the senior engineer knew was the connection between two sound components — such as receiver, mixer, amplifier, and speakers — went beyond two copper wires and some insulation.
Excess humidity can reduce insulation resistance on PC boards and in test connection insulators.
过高的湿度会降低印制电路板和测试连接绝缘子的绝缘电阻。
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Also to ease making the connection from collector temperature sensor to control unit, a double-tipped silicon cable is attached besides the hose and insulation.