The proposal for installing failure excitation circuit is given to guarantee safe operation.
为确保机车安全可靠地运行，提出了加装故障励磁电路的建议。
The mechanical failure is the main part of circuit breakers defects.
断路器故障中机构故障占主要地位。
Its circuit structure is very simple, so lowering the cost of manufacture and failure rate.
电路结构非常简单，降低了造价和故障率。
Its circuit structure is very simple, so lowering the cost of manufacture and failure rate.
电路结构非常简单，降低了造价和故障率。
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