field evaiuation 中文意思是什麼
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As part of the nationa1 " 9 ' 5 " key project ( no. f 96 - a23 - 02 - 010 ) on instrumentation supported by the ministry of science & technology ministry this study took the behavior of soil - water - system dielectrics as a key point for further development and evaiuation of a new kind of standing wave ratio ( swr ) soil moistufe measuring system. a series of academic analysis and a lot of experiment research on swr4ased soil moisture sensor were catried out and presented in this paper. on the basis of the research, a new soil moisture sensof, which it is very suitab1e for field use, was developed
本文在國家科技部「九五」儀器儀表攻關項目的資助下（專題號： 96 - a23 - 02 - 010 ） ，以土壤介電特性為研究的鍥入點，對基於駐波率原理（ standingwaveratio ? swr ）的土壤水分快速測量方法做了系統的理論分析和深入的性能分析研究，為研究開發成功swr型土壤水分測量傳感器奠定了基礎，同時研製出與全球定位系統（ gps ）聯合使用的土壤水分空間分佈速測儀樣機。
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