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。

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FDA can ask for the proof of safety and effectiveness of a product if its distributors challenge FDA's authority.

如果经销商对FDA的权威提出质疑，FDA可以要求他们提供产品安全性和有效性的证明。

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We should not blindly demand proof of safety as a prerequisite for using new technology.

我们不应该盲目地要求安全性证据，作为利用新技术的先决条件。

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There are high chairs to be set up, electrical outlets to safety proof, and formula to buy in bulk.

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The proposals eschew the traditional risk-based U.S. regulatory approach and embrace the European style of precaution, which demands ex post proof of safety even where no current evidence reveals environmental or health harms.

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Rival AstraZeneca said it had stopped its 15, 000-patient clinical trial of its Crestor because an independent safety committee said there was proof the drug prevents heart attacks, strokes and deaths.

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