This paper researches the problem of the optimization of materials handling system in field area which have theoretical and practical significance.

本文研究了场区内物料搬运系统的优化问题，具有一定的理论价值和现实意义。

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There is an increasing demand for people who are able to take in great area at a glance, people who perhaps do not know too much about any one field.

现在对那些一眼就能看懂大领域的人的需求越来越大，这些人可能对任何一个领域都不太了解。

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The fishermen know the approximate time of year when they will be allowed to fish, but on any given day, one or more field biologists in a particular area can put a halt to fishing.

渔民们知道一年中允许捕捞的大概时间段，但是在某些日子，一个地区可能有一个或多个实地生物学家中止捕鱼活动。

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closing an air field in a populated area and building a new one on an existing U.S.base in the northern part of the island.

VOA: standard.2009.10.20

"That's the beauty of it -- for early grade cancers, those will be able to be treated right in the field, right in the rural area, " says Dr Karen Yeates, of Queen's University, Ontario, the principal investigator of The Kilimanjaro Cervical Screening Project.

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Still another is in the area of field service: enabling technicians and repairmen to better manage work orders and download equipment information.

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He was in a field 1km away from the action zone in an area where soldiers eat their lunch when he was shot and killed in May 2012.

BBC: Michael Maguire