A fail-safe backup system ensures reliable operation, even if a fault develops in the main circuit.
一个自动防故障装置的后备系统确保了可靠的运转，即时在主要电路产生了故障。
The significance of farm transporters cab on operation safety and the necessity of fail-safe design are summarized. Fail-safe design concepts and methods for cabs have been suggested.
简述了农用运输车驾驶室对于行车安全的重要性及安全设计的必要性，提出了驾驶室安全设计的思路和方法。
The safety vent of the utility model can not fail. The utility model cancels exhaust pipes. The utility model has the advantages of stable catheter dimension, and safe, exact and reliable operation.
本实用新型安全孔不会失效，取消了排气管，导管尺寸稳定，操作安全、准确、可靠。
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