survey frequency 中文意思是什麼
survey frequency
解釋
測量頻率-
The underwater topographic survey in lake dianchi employed the dual - frequency gps with rtk technology, which type is american trimble 4700, for horizontal positioning f and the type of the fathometer is wuxi haiying sdh - 13d ; the navigation software : the south 5. 0
對滇池水下地形測量外業數據的採集，平面定位採用美國trimble4700雙頻gps接收機；水深測量採用的測深儀為無錫海鷹sdh ? 13d ；導航軟體為南方公司的導航5 . 0版。 -
Dephasing dual frequency survey antenna
零相位雙頻測量型天線 -
After that, a survey was conducted among the students. i utilized the spss win program to obtain the various frequency, percentage, standard deviation, and divergence analysis statistics. based on the result of my analysis, i then presented my proposal for animproved plan and alternative policy of the current education
利用『 spsswin10 . 0 』統計處理程序表，對問卷調查材料實行了頻度調查，計算了百分比、標準偏差，進行了分散分析，並分析了其結果，以其結果為基礎，提出了改善老人教育的政策措施。 -
Millimeter wave system has many distinct advantages such as miniaturizing system components, increasing frequency band width, providing higher detectability, uneasily influenced by atmosphere conditions, etc. this makes millimeter wave technique get the increasingly extensive application in radar, communications, electronic warfare, guidance, remote sensing, radiation survey, therefore the research of millimeter system is very vital for civil, the industry, national defense
毫米波系統具有可以使元部件小型化、增加系統帶寬、提供高解析度以及受大氣條件的影響較小等許多明顯的優點，這使得毫米波技術在雷達、通信、對抗、制導、遙感和輻射測量等技術領域中得到日益廣泛的應用，所以毫米波系統的研究對於民用、工業、國防具有重要的意義。 -
Abstract : biological invasions are a continuous feature of a non - equilibrium world, ever more so as a result of accidental and deliberate introductions by mankind. while many of these introductions are apparently harmless, others have significant consequences for organisms native to the invaded range, and entire communities may be affected. here we provide a survey of common models of range expansion, and outline the consequences these models have for patterns in genetic diversity and population structure. we describe how patterns of genetic diversity at a range of markers can be used to infer invasion routes, and to reveal the roles of selection and drift in shaping population genetic patterns that accompany range expansion. we summarise a growing range of population genetic techniques that allow large changes in population size ( bottlenecks and population expansions ) to be inferred over a range of timescales. finally, we illustrate some of the approaches described using data for a suite of invasions by oak gallwasps ( hymenoptera, cynipidae, cynipini ) in europe. we show that over timescales ranging from 500 10000 years, allele frequency data for polymorphic allozymes reveal ( a ) a consistent loss of genetic diversity along invasion routes, confirming the role of glacial refugia as centres of genetic diversity over these timescales, and ( b ) that populations in the invaded range are more subdivided genetically than those in the native range of each species. this spatial variation in population structure may be the result of variation in the patchiness of resources exploited by gallwasps, particularly host oak plants
文摘:生物入侵是不均衡世界的一個永恆話題，尤其是當人類有意或無意地引入物種后.很多引入顯然是無害的，但另外一些則有著嚴重的後果，會給入侵地的生物以至於整個生物群落造成影響.本文總結了分佈區擴張的常見模式，概述了它們對遺傳多樣性和種群結構式樣所造成的影響.描述了如何根據以一批遺傳標記所得到的遺傳多樣性式樣來推斷入侵途徑，來揭示伴隨擴張選擇和漂變在形成種群遺傳樣式中的作用.本文對日益增多的群體遺傳學方法進行了總結，這些技術可以用來在不同的時間尺度上推斷種群規模所發生的巨大變化（瓶頸效應及種群擴張） .最後，我們以歐洲櫟癭蜂（膜翅目，癭蜂科，癭蜂族）一系列入侵的數據為例對一些方法進行了說明.從500 10000年的時間尺度上，多態的等位酶位點上等位基因頻率的數據表明: 1 ）遺傳多樣性沿入侵路線呈不斷下降的趨勢，支持了冰河期避難所作為遺傳多樣性中心的作用; 2 ）入侵地區的種群與該物種原產地的種群相比，遺傳上的分化更為強烈.這種種群結構在空間上的變異可能是被櫟癭蜂開發的資源尤其是櫟樹寄主在斑塊上出現變異的反映 -
Secondly, because behavior is the display of psychological actions, by noting down and anglicizing visitor behaviors, we can get the rules of visitors ’ psychological actions indirectly. this paper uses statistics method and spss software to analyze the survey date. in the past, most of the museum visitor surveys showed its results in the form of percentage and frequency
在分析方法上，本研究引入了統計學的分析方法和spss統計軟體對資料作卡方檢驗、方差分析、線形回歸等統計學上的分析，揭示不同性別、年齡、受教育程度、職業的觀眾在心理和行為上的不同特徵，從而找出影響觀眾心理和行為的因素。 -
Factor analysis, frequency analysis, means analysis and one way anova analysis are adopted to illustrate the job satisfaction issue in hotel industry. the sixth part is the conclusion part. relevant suggestions on how to improve job satisfaction of hotel employees and how to scientifically conduct job satisfaction survey are discussed in this part
第五部分為實證研究部分，基本介紹了問卷的人口統計因素，對問卷的信度和效度進行了分析，並利用因子分析、描述性分析以及差異分析的方法，對數據進行闡述，總結了飯店員工滿意度的基本情況，並得出飯店員工的工作部門、職位、學歷、工作年限以及離職傾向等因素對員工滿意度有顯著影響的結論。 -
Radio frequency cables, coaxial, with solid dielectric, z 50 ; survey
固體絕緣射頻同軸電纜. z 50歐姆.概述 -
Radio frequency cables, coaxial, with solid dielectric, z 75 ; survey
固體絕緣射頻同軸電纜. z 75歐姆.概述 -
Survey findings also suggested that although more young people exercised, their frequency of exercising was lower than that in the oldest age group
調查結果亦顯示，雖然較多年輕人做運動，但次數卻低於年齡最長的組別。 -
Through the observation and survey on wuhan city and the surrounding rural area, the article analyzes the communion model applicable to the various space and the coincide degrees between design function and use function, compares the interpersonal communion style, frequency and the use of communion site from some different aspects such as the two kind of urban and rural zones, cultures and lifestyles, in order to propose some guide in the relevant aspects at the design
摘要該文通過討武漢市及其周邊農村的觀察與調研，分析各種空間所適宜的交流模式、設計功能和使用功能的吻合度，比較在城市與農村兩種不同地域、不同文化與生活方式下，人與人之間的交流方式、交流頻率以及對交流場所使用的異同，從而指導我們在相關方面的設計。 -
Survey on power amplifiers for testing immunity to radio - frequency electromagnetic disturbances
射頻電磁騷擾抗擾度試驗系統中功率放大器應用探討 -
Survey of medical irradiation frequency during x - ray diagnoses in yangquan city
射線診斷醫療照射頻率水平調查
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