field tech是什么意思？ 英文, 专业, sometimes, manager, setting

里师傅

http://news.mydrivers.com/1/203/203588.htm
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下面有一段英文的解释，因专业词太多，没看懂。
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  b2 W5 S9 C  D% tA field technician is someone who works in the “field,” as opposed to in an office, laboratory, showroom, performance venue, school, or other setting. A field technician is also a “technician,” as opposed to a researcher, manager, agent, engineer, sales rep, analyst, specialist, merchandiser, supervisor, etc. Nevertheless, field technician work may sometimes be combined with these other, separate roles and work location. Moreover, field technician is a designation in many career areas, and there a large number of quite varied field technician positions in different fields, performing different types of work.' [: Y% N1 [7 I

) w  Q! o3 I0 N) L! g8 r2 AField technician, or field archaeologist, is the name of the short-term positions that a relative neophyte to archaeology takes on, under supervision to begin to learn the work of an archaeological dig. In this role, a person would do surveying, controlled excavation, plan views, note taking, and artifact collection. Qualifications can be met through a bachelor’s degree in archaeology, anthropology, or a related field, completion of field school, or prior experience as a field technician. Hiring for this type of position may be by a college or university, a state, local, or federal government agency, or a private company.
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2 F$ m5 p1 @0 Y% ?9 @A field technician in meteorology, on the other hand, carries out a very different range of tasks, including management of meteorological tower siting, installation, and maintenance, both routine and emergency, and setting up instrumentation. Qualifications can be met through a bachelor’s degree in meteorology or a related field, or through experience.

里师傅

我觉得有跨领域、现场支持的意思呢