During short term, as the relationship between safety proof level and output, enterprise safety-working situation is related with coal price, variable cost, accident compensate and regulation level.
短期内，由于企业预防水平与产量的相关性，企业的安全生产状况将和煤炭价格、企业的各种变动成本、事故赔偿标准以及安全监管水平有关。
Fixed cost a cost that does not vary with the volume of activity in the short term. (Also called Non-variable cost or Constant cost.)
固定成本短期内不随作业量而变化的成本。(又称“不变成本”或“恒定成本”。)
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