测试仪的响应时间应该非常短以避免某些绝缘部件的微晶化现象或其它的不可逆破坏。
The detector's response time should however be very short to avoid micro-carbonation phenomena on certain insulators or the definitive destruction of others.
这位资深工程师所知道的就是两个音响部件之间的连接，两段铜线和一些绝缘介质之间的接收器、混音器、放大器和扬声器。
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.
人们不会认为绝缘的金属丝头是有电部件。
Insulated lead wires are not to be considered to be live parts.
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