chemical assay 中文意思是什麼
chemical assay
解釋
化學測定-
To investigate the space / time distributions and occurrence and evolution of such events, the diffusion pattern over deserts, turbulent transfer features in sandstorm weather, the particle size distribution, mass concentration and its distribution, optic properties, chemical composition and physical factors responsible for the initiation of raising sands, we made integrative observation and sounding of sandstorms deep in the large - scale desert area, including tengri, badanjilin and maowusu, with the items consisting of micrometeorological measurement, 3d wind observation, data from kb - 120 and anderson samplers of mass concentrations of sands with their spectrum, the distribution of aerodynamic particle sizes from the aps3310a, retrieval of aerosols " optic depth from sunphotometer data, assay of the chemical composition by means of neutron activiation analysis ( naa ) and integrated study of all related factors for causing sandstorm to occur, based on the observations of all kinds
利用所取資料，系統分析了不同強度沙塵天氣條件下沙塵氣溶膠質量濃度和質量濃度譜、粒子譜分佈、光學厚度、化學組分等特徵；綜合分析了影響沙塵起動的諸物理因子在沙塵起動中的作用；用沙塵輸送模式對一次沙塵暴天氣造成的泥雨過程的形成機制進行了模擬。歷史氣象資料統計分析表明，沙塵暴有其高發期（ 4 、 5月）和高發時段（ 14 - 20時） ， 14時到20時之間發生的沙塵暴約占沙塵暴總次數的66 。揚沙和沙塵暴天氣條件下，湍流動量通量和湍流感熱通量都是重要的湍流交換，沙塵暴發生前近地層的超絕熱不穩定對沙塵暴天氣有加強作用。 -
Compared with the destructive assay ( da ), nda has some obvious advantages : it is easy to make measurement automatically without sampling and changing the physical and chemical state of nuclear material, low cost, less operator exposure of radiation, much faster than chemical analysis and no hazards and wastes generated
與化學分析即破壞性分析（ da ： destructiveanalysis ）相比， nda分析具有不破壞樣品、容易實現自動化、快速、簡便、費用低廉和不產生放射性廢物等優點。 nda核標準樣品的制備既費錢又費時。 -
Nuclear energy - nuclear fuel technology - waste - strontium 90 assay in liquid or solid waste after a preliminary chemical separation
核能.核燃料技術.廢料.在初步化學分離后對液體或固體廢料中鍶90的測定 -
This paper describes techniques for detecting early markers of dn, including routine methods, such as radioimmunoassay, chemical luminescence immunoassay, enzyme - linked immunosorbent assay etc., and biosensors and microelectrochemical biosensors, such as piezoid sensor, fluorescence biosensor, surface plasmon resonance biosensor etc
本文介紹糖尿病腎病早期標志物的檢測技術，包括放射免疫測定法、化學發光免疫測定法、酶聯免疫吸附測定法等實驗室常規檢測方法，以及石英晶體免疫傳感器、熒光生物傳感器、表面等離子體共振生物傳感器和微型電化學生物傳感器等檢測技術。
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