Reduced frequency of maintenance and repair, especially expensive repairs, is a direct fallout of weakening employment rates, consumer income and spending power.
保养和维修的次数减少(尤其是昂贵的维修)，直接导致就业市场疲软，消费者收入和消费能力下降。
The frequency and high cost of this has led to reluctance by some operators to have this maintenance done at the required frequency.
频率和成本高，这导致一些运营商不愿意将这一维修工作在所需的频率。
The failure vector, failure frequency sequence, maintenance vector, and renovation sequence of repairable components were constructed.
构造了元件的故障向量、故障频率序列、维修向量和修复序列。
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