通过计算，冗余控制可使整个负压系统的平均无故障工作时间至少增加一倍。

Theoretic calculations show that with redundancy control the mean-time-between-failures (MTBF) of the vacuum system is doubled at least.

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通过计算，冗余控制可使整个负压系统的平均无故障工作时间至少增加一倍。

Theoretic calculations show that with redundancy control the mean-time-between-failures (MTBF) of the vacuum system is doubled at least.

youdao