There is always an internal circuit breaker to protect the instrument from overload.

总有一个断电器以防止仪器超负荷运转。

《柯林斯英汉双解大词典》

This article introduces the internal circuit and working principles of PEUGEOT car alternator.

介绍标致汽车交流发电机的内部电路及工作原理。

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Internal circuit protection includes: thermal shutdown with hysteresis, UVLO, and crossover-current protection.

内部电路保护包括：热关机滞后，UVLO，及交叉电流保护。

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Knight Capital general counsel Leonard Amoruso asks how the individual stock circuit breakers will interact with market-wide circuit breakers, a newly adopted up-tick rule for short sellers and internal circuit breakers imposed by NYSE Euronext and Nasdaq.

FORBES: Broker-Dealers See Holes In SEC Circuit Breakers

To achieve that, the engineers will have to include multiple cell types and devise a system that allows the lab-built creature to sense its environment and use an internal "decision-making circuit" to pick different behaviors.

WSJ: Jellyfish Hints at Fix for Damaged Hearts

But the Internal Revenue Service, and three federal circuit courts have ruled since then that a trust's investment fees are subject to the same 2% floor for miscellaneous itemized deductions that individual tax filers are subject to.

FORBES: The Way The Tax Code Crumbles