“telephone relay”的概念、定义、翻译、参考文献-科学参考

单词	telephone relay
释义	telephone relay [`tel·ǝ´fōn ´rē´lā] ^ELECTRICITY A relay having a multiplicity of contacts on long spring strips mounted parallel to the coil, actuated by a lever arm or other projection of the hinged armature; used chiefly for switching in telephone circuits.
随便看	differential chemical reactor differential coefficient differential compaction differential comparator differential compound motor differential correction differential cross section differential delay differential diagnosis differential discriminator differential duplex system differential ebuliometer differential effects differential electromagnet differential entrapment differential equation differential erosion differential extraction differential fault differential fill-up collar differential flotation differential form differential frequency circuit differential frequency meter differential gain control

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