primary sampling 中文意思是什麼
primary sampling
解釋
一級抽樣-
Adrenal venous sampling in the differential diagnosis of primary aldosteronism
腎上腺靜脈插管取血在原發性醛固酮增多癥分型診斷中的意義 -
Compared with primary second sampling a / d converter, it realizes digital feedback by digital circuit and does n ' t adopt high accuracy d / a converter with complex technology and high price. it has many excellent qualities, such as high - integration, high - accuracy, widely used, low - price. it can be widely used in test and measure system, scientific instrument, iatric instrument, automatic test system etc. so popularizing this new type a / d converter has very significant meaning
與原有的兩次采樣a / d轉換器相比，用數字電路實現數字反饋可不用技術復雜、價格昂貴的高準確度d / a轉換器，具有集成度高、準確度高、適用性強、價格低等優點，可廣泛應用於測量測試系統、科學儀器、醫療儀器、稱重儀器、自動測試系統等。 -
A study on the establishment of phase angle primary standard by sampling measurement
通過采樣測量技術建立相角基準的探討 -
And it investigates the appearance condition ( including joint, crack, eroding, corrosion, braking pole device rupture, crane - girder ' s gnawing railway and so on ) of the whole crane - girder system on the spot, at the same time, it also actually examines the stress of the beam, chemical ingredient, distortion and railway excursion, etc. through sampling, and based on the actually examined results, it checks and calculates the carrying capacity of crane - girder system. then, based on the investigating on the spot and the calculated result, it discusses the mechanism of fatigue failure of the upper part of welded steel crane - girder, analyses the reason of steel crane - girder in the high - frequency emerging the fatigue crack, institutes the strengthened method of damaged steel crane - girder of accurate packing up workshop of the primary mill plant. finally, it presents some advice and suggestions for the repairing and strengthening method of fatigue crack of upper part of steel crane - girder in the high - frequency
針對包鋼初軋廠精整車間鋼吊車樑上部區域出現裂縫這一問題，本文首先綜述了國內外關于焊接鋼吊車樑上部區域疲勞裂縫的研究現狀；其次對整個吊車梁系統的外觀情況（包括連接、裂縫、腐蝕、銹蝕、制動桿件斷裂、吊車啃軌等）進行了現場調查，抽樣實測了梁的應力、化學成分、變形及軌道偏移等，根據實測結果，對吊車梁系統的承載能力進行了驗算；然後，根據現場調查及計算結果，探討了焊接鋼吊車樑上部區域疲勞破壞的機理，分析了重級工作制鋼吊車梁出現疲勞裂縫的原因，制定了初軋廠精整車間破損鋼吊車梁的加固方案；最後就重級工作制鋼吊車樑上部區域出現疲勞裂縫的修復與加固方案提出了一些意見和建議。 -
In order to understand the childhood behavior disorder and suicide ideation in primary school studens in changsha city, and to identify factors affecting childhood behavior disorder and suicide ideation of children, 1060 primary school students, 796 persons from urban areas and 264 from rural area, were randomly sampled from six primary schools in changsha by multiple cluster sampling
為了了解長沙市城鄉小學生的行為問題、自殺意念以及它們的影響因素，本研究採用多級整群隨機抽樣法，在長沙市城鄉隨機抽取六所學校的1060人（城市796人，鄉村264人）為研究對象。 -
Investigation was used and thirty - three schools were taken out by random sampling in alashan league. in order to explain the problems further, some headmasters or deans who manage educational scientific researches in primary and middle schools were interviewed by making an outline for interviews on the base of investigation
本研究運用問卷調查法，分層隨機抽取了阿拉善盟的中小學33所，為了進一步說明問題，在問卷調查的基礎上，設計了訪談提綱，對部分中小學教育科研管理人員進行了深度訪談。 -
Application of adrenal venous sampling in typing diagnosis of primary hyperaldosteronism
腎上腺靜脈采血在原發性醛固酮增多癥分型診斷中的應用 -
The meter adopts digital synchronous sampling and micro technology to accurately measure true rms of transformer ' s primary voltage, current, power, power factor, true rms ( ac ) or average ( dc ) of secondary voltage and current, true rms of secondary voltage ripple
該系列儀器採用數字同步采樣及微機技術，能準確測量變壓器的初級電壓、電流、功率、功率因數的真有效值，次級電壓、電流的真有效值（交流）或平均值（直流） ，次級電壓紋波的真有效值。 -
In order to reduce cost and complexity, digital camera manufacturers usually employ a single ccd or cmos sensor whose surface is covered with a color filter array, named as cfa. the cfa limits each sensor pixel just sampling one of the three primary color values ( red, green or blue )
為了降低數字相機的成本與體積，生產廠家通常會採用單片ccd或cmos圖像傳感器，並在其表面覆蓋一層彩色濾波陣列，也稱為cfa ， cfa使每個像素只能獲得物理三基色（紅、綠、藍）其中一種分量。 -
In this system, mean velocity pipe is applied to transform the air velocity signal into pressure difference signal, and then the pressure difference signal is input into pressure difference transmitter to realize the transform of the pressure difference signal from non - electricity signal to electric current, and through the resistance in the corresponding sampling circuit the electric current is transformed into voltage signal ; the thermocouple is used as the primary element to realize the transform from temperature signal to the voltage signal ; under the control of communication agreement module, diversified voltage signal is transported into computer by way of a / d conversion module, and then the monitoring software compiled beforehand is transferred to deal with all the voltage signals relatively, the result of which is conveyed to relative interface to display
該裝置具有三個特點：一是採用表面式測溫方法，有效地減少了元件的維護與損耗；二是採用工業控制計算機及信息就地採集、數據總線傳輸的方式，充分利用計算機和數據自動採集方面的技術，實現各種參數的在線測量，監測指標全面，能與dcs系統聯用，具有技術先進性和一定的前瞻性；三是採用顯示器配工業觸摸屏的顯示方式，為現場運行人員提供了簡單、易學、方便的操作模式。本裝置自2001年8月投入運行以來，有效地幫助、指導運行人員進行燃燒調整，對于鍋爐和機組的安全、經濟運行發揮了重要作用。 -
Digital feedback twice sampling a / d converter is based on common accurate dual integral a / d converter. during the second sampling, through the control logic, programmable counters and switch control, realize digital feedback and substitute primary analogue feedback realized by high accuracy d / a converter
在第二次采樣中，通過控制邏輯、可編程計數器和開關控制來實現數字反饋，以取代原有的兩次采樣a / d轉換器中通過高準確度d / a轉換器所實現的模擬反饋。 -
Primary sampling unit
初步抽樣單位 -
Primary state soil sampling is an important tache in engineering exploration, different sampling method has different affection to the quality of soil sample
摘要採取原狀土樣是工程勘察中的重要環節，不同的取樣方法對土樣質量的影響不同。 -
The author discussed the four steps model and provided the ameliorative method of the logit model and the solution of the fictitious public traffic routes. firstly, the author discussed the result of survey of residents trip, concluded the primary character of residents trip and put forward the method of stratified random sampling plan on that.
預測時採用了一種比較流行的「四階段模型法」 ，針對「四階段模型法」的出行分佈、交通分配子系統展開了深入的討論，提出了針對重慶山城交通特點的「改進的logit型的隨機路徑選擇模型」和「虛擬公交線路演算法」 。 -
Therefore, the technological and economic feasibility for the construction and running of the demonstration project can be guaranteed. thanks to improved tar sampling method, the primary study on gas clarification technology is progressed
結合中試試驗及示範工程的設計運行，利用改進的面向工程應用的簡易生物質焦油取樣測量法，對燃氣凈化技術進行了研究。 -
Firstly, design the software phase - closed loops ; secondly, realize the double closed loops control of the instantaneous value and the virtual value. furthermore, the dynamic flux imbalance of the output transformer caused by ordinary pi arithmetic is analyzed in detail. a new solution for flux balance by sampling the instantaneous primary current of the output transformer and introducing the on - line calculated bias current component into the voltage regulation arithmetic is presented
系統軟體實現了ups的各個功能模塊，首先設計了軟體鎖相環；然後實現了輸出電壓瞬時值和有效值雙閉環反饋控制；並且在深入分析基本數字pi演算法所引起的輸出變壓器動態偏磁問題的基礎上，提出了一種改進演算法，實時消除了變壓器的偏磁。 -
Using action research, this project employed a combination of methods, such as literature review, in - depth interview, sampling, and observation, to understand the status of science teaching in the area ' s rural primary schools, and to explore new and better strategies for science teaching
綜合運用了文獻法、抽樣、訪談、參與式觀察等多種研究方法，在行動研究中探討該地區農村小學科學教學的現狀與出路。
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