“switch hook”的概念、定义、翻译、参考文献-科学参考

单词	switch hook
释义	switch hook [`swich ´hu̇k] ^ELECTRICITY A switch on a telephone set that operates when the receiver is placed on the hook or removed from it.
随便看	elongation factor Elopidae Elopiformes elpasolite light-activated silicon controlled switch light adaptation light amplification by stimulated emission of radiation light amplifier light antiaircraft artillery light artillery light beacon light-beam galvanometer light-beam oscillograph light-beam pickup light blasting light bomber light bulb light carrier injection light-case bomb light chain friedelite Friedel's law Friedlander's bacillus Friedlander's pneumonia Friedlander synthesis

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