Objective To investigate the specific application of ergonomics for design of operation field in sanitary train.

目的：探讨人机工程学在卫生列车手术区设计中的具体应用。

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This paper also introduces 8 measures to reduce bleeding during operation, so as to make the operation field clear, avoid residue and recurrence.

本文还提出了减少术中出血的8种措施，力求手术视野清晰，防止残留和复发。

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Conclusion Endoscope is easy to manipulate with a clear operation field, and can, therefore, be used in myringoplasty for all kinds of tympanic membrane perforations using sandwich technique.

结论耳内镜使用方便、术野清晰，夹层法适合于各种类型的鼓膜穿孔。

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The extra cash will go on setting up a year-round field operation to lobby all levels of government.

ECONOMIST: The labour movement

Even if others are keen on a field, however huge, in pristine jungle nearly 500 kilometres and a mountain range from the populated coast, new bids would take time: Perupetro, the state oil firm, says it would take the rest of 1998 to prepare bidding specifications, under the government's new plan to divide the deal into three: operation of the field, the main pipelines, and distribution.

ECONOMIST: Seismic shock from Camisea

That operation, in the Pitu field, has been strongly criticised by environmentalists.

BBC: Cairn Energy announces its 2013 strategy