選擇測驗 的英文怎麼說
中文拼音 [xuǎnzháicèyàn]
選擇測驗
英文
selection test- 選 : Ⅰ動詞1. (挑選) select; choose; pick 2. (選舉) elect Ⅱ名詞(挑選出來編在一起的作品) selections; anthology
- 擇 : 擇動詞(挑選) select; pick; choose
- 測 : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
- 驗 : 動詞1. (察看; 查考) examine; check; test 2. (產生預期的效果) prove effective; produce the expected result
- 選擇 : select; choose; opt; election; choice; culling; alternative
- 測驗 : test; trial run; examination; testing
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They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem
本研究以重慶市的南川金佛山(自然保護區) 、黔江武陵山(國家重點退耕還林示範縣,森林覆蓋率50以上)和北碚中梁山(遭人為破壞嚴重)典型巖溶區為對象,選擇了幾種重要的利用方式,包括林地、果園、耕地、棄耕地和灌草坡,採用野外巖溶生態調查和室內試驗測量分析相結合的方法,以不同土地利用方式巖溶土壤肥力為重點,對不同土地利用方式土壤肥力特徵進行量化分析,找出巖溶土壤肥力差異的主要方面及其根本原因,論文主要從土壤剖面物理退化指標(有效土層厚度、有機質層厚度、質地、團聚體、水分含量等) ,化學肥力退化指標(有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等) ,樣地土壤微生物指標(細菌、真菌、放線菌數量及總量)以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究,為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。In order to elaborate the app licability of osl to loess, especially single aliquot regenerative protocol ( sar ), involving stimulation of the same disc with an infra - red laser diode followed by blue leds to polymineralic fine - grains of loess, such explanations as light bleaching, preheat, anomalous fading, prior - ir exposure were investigated in this paper. for drawing adequate coarse grains from loess, quartz and feldspars, as well as loess, were etched by hydrofluoric acid and fluorosilicic acid. the sequence of ages of holocene loess in weihe rivier basin has been established by single - aliquot ( sar ) and multiple - aliquot using fine - grains and sar using coarse - grains
本文通過渭河流域全新世黃土的光曬退實驗,地表黃土樣品的d _ e值測定,細顆粒單片的預熱、反常衰退、紅外暴露實驗,說明釋光測年在全新世黃土中應用的可行性及單片再生劑量法( sar )在黃土細顆粒中的適用性;為了從黃土中分離出足夠的粗顆粒,進行了純石英和長石的氫氟酸( hf )和氟硅酸( h _ 2sif _ 6 )溶蝕實驗,黃土粗顆粒石英溶蝕分離實驗;通過細顆粒單片、多片的blsl 、 irsl和post - irosl ,熱釋光,及粗顆粒石英的blsl的年代測定,選擇適于全新世黃土的釋光測年方法,並建立了渭河流域全新世黃土的年代序列。Multispectral data for bathymetry is often performed in relatively clear shallow waters, up to now, no one use multispectral data for bathymetry in estuary waters of yellow river, where the highest sediment concentration in the world has been observed. in another part of this thesis, multispectral data acquired by landsat - 5 tm and in situ data are used for bathymetry in estuarine waters of yellow river. statistical models based on one band and two bands of tm respectively are developed
利用兩期水深的比對可以揭示黃河水下三角洲的沖淤演變規律,但由於實測水深資料獲取較為困難,因而利用遙感來反演水深是一個重要的選擇,為此,本文在黃河口海現代黃河三角洲沖淤演變規律與遙感應用研究端走取兩個試驗區進行了多光譜遙感水深反演試驗,試驗結果表明,在極高泥沙濃度、較強水動力條件的黃河口海域,用多光譜遙感反演水深是可行的。Microbiological analysis of milk ; determination of presumptive bacillus cereus ; method with selective enrichment
乳的微生物檢驗.預計的蠟樣芽胞桿菌的測定.選擇性增For the first time, on the view of algorithm and experimental system, the author analyze all the factors influcing the diagnose accuracy. on the basis of these analyses, " window " and convolving function with the best accuracy are selected, at the same time, the formulas of errors are deduced
在理論分析基礎上,選擇了具有最佳測量精度的窗函數和卷積函數,並對演算法進行了改進,提高了計算精度;對實驗系統各部分對測量精度的影響也進行了定量分析。The effect of length of carbon chain on spumescence capability ; detersive efficiency were studied, then choose proper length carbon chain for different purpose
通過實驗測定碳鏈長度對泡沫力、洗滌力等的影響情況,為不同使用目的選擇合適長度碳鏈的烷基甜菜堿提供依據。Long - hole and geometrical proportion type of mixing unit is finally adapted in lpg supply system, and power and torque output of lpg engine are improved by increasing compression ratio, and ignition characteristic is tried to adjusted to satisfy engine performance. meantime emission performance and noise level of lpg engine at full - throttle and other various part - throttle operations are tested and compared with former gasoline engine. ( 3 ) it is verified by engine dyno tests that lpg engine has better synthesized performance at aspects of power and torque, fuel economy, as well as emission than former gasoline engine
選擇了等比例長孔式混合器控制空燃比;通過提高壓縮比來彌補動力性的損失;以動力性為主控目標,對最大功率點、最大扭矩點、中等轉速、最低轉速點所對應的發動機轉速做了點火特性的調節;通過空燃比的合理控制,直接改善發動機的動力性、經濟和排放指標;作為對缸內燃燒過程的理論分析,進行了燃燒特性的實驗測試;對原汽油機和新開發的液化石油氣發動機,進行了外特性和部分負荷特性以及怠速的排放及噪聲對比性測試。Utilizing a mix of multiple choice and essay questions, just like what students see on many placement and state assessment tests, this book is a helpful aid for preparing for tests of many kinds
利用組合選擇題和徵文的問題,就像學生上看到許多安置和狀態評估的考驗,這本書是一個有益的幫助,為準備測試多種。By choosing 358 junior school teachers in 10 rural schools in five towns as the independent sample ; adopting the " scl - 90 symptom measure form " and the self - made " invetigation paper on teacher ' mental health reason " as survey tools ; using the three methods - measurement, investigation and interview in an integrated way, the aothor made a practical survey to the mental health conditions of the teachers in rural junior schools in zhangye district
本研究選擇了張掖地區所轄的五縣市共10所農村初中的358名教師作為獨立樣本,採用「 scl ? 90癥狀測評量表」和自編的「教師心理健康成因的調查問卷」為研究工具,將測驗、調查、訪談三種方法相結合,對張掖地區農村初中教師心理健康狀況進行了實證研究。By hydraulic modeling, this paper describes studies on the stability of a floating bulkhead operating in standing water and flowing water, and it ' s hydrodynamic stability characteristics that distinguish in standing water from in flowing water ; and direct measurements of the forces acting on the model floating body during floating and sinking is taken. as a result, the rotation stress curves are produced and analyzed ; to provide data for optimum operation schedule analyses of the sluice, the relationship of the impact forces acting on the side wall of the gate and the running speed is studied ; the reasons of unstably uplifting of the bulkhead are discussed and the method to solve the problem is also given in this paper
本文結合常州新閘防洪控制工程水工模型試驗,系統分析了浮箱門在靜水和動水中的穩定性及其影響因素,指出靜水穩性和動水穩性的不同特點;試驗測定了浮箱門動水運行時的受力情況,給出並分析了定位過程轉動力的變化過程曲線;根據浮箱門啟閉速度與門體和岸墻之間撞擊力大小的關系,選擇合理的動力設備,為設計和工程實踐提供可靠依據;分析浮箱門難以穩定上浮的原因,並給出解決方案。Base on the optimize of structure parameter 、 examine of structure interference 、 research of machining technics and so on. manufacture the hyperboloid clutch with rollers, and it satisfy with the request of function and experimentation
通過對雙曲面滾柱加載器的結構參數選擇、結構干涉檢測、加工工藝的研究,研製出了能夠滿足功能要求及實驗條件的雙曲面滾柱加載器。Based on theory and experiences, this paper has discussed how to choose assistant electrode distance, large - current power, measuring points, measuring lines, etc. in detail
結合理論和實踐經驗,著重討論了四極法輔助極距離、大電流電源、地網測量點、測量線的選擇等問題。Secondly, the steps of the glass ' s image processing are discussed in detail. based on the experiments and the characteristics of interference fringe, we pre - process the images with median filter and image segmentation with dynamic threshold. after marking and thinning the resulted fringes, we analyze linearly the unifor mity of product ' s samples with the characteristics of the framework
然後,結合檢測系統中玻璃干涉圖像處理的任務,詳細介紹了處理的各個步驟:通過實驗比較,並結合干涉條紋圖像的特點,選擇中值濾波、動態閾值分割等技術對圖像進行預處理;然後對獲得的二值條紋進行標記、細化,提取條紋骨架;最後,用骨架的特徵進行線性分析,識別條紋的類型,判斷玻璃樣品的均勻性。A bulk progeny test is a simple way to learn the effectiveness of mass selection.
集團後代測驗是了解混合選擇有效性的一個簡單方法。Combining the basic laws of psychophysics and signal detection theory, we use two - alternative forced - choice ( 2afc ) to study the threshold change of human electric sense under different noise levels
在心理物理實驗中,結合心理物理學和信號檢測論的基本原理,採用了二間隔的強迫選擇法( 2afc )作為實驗方法,研究不同噪聲量級情況下人體電感覺閾值的變化。One is the evt - based var model ( including gev model and gpd model ), the other is the quantile regression var model. secondly, i evaluate predictive performance of a selection of var models for chinese stock market data. these var models include riskmetrics method, historical simulation, monte carlo method, and the three recent models based on quantile regression and extreme value theory
本文首先重點探討了極值分佈var模型(包括廣義極值分佈和廣義帕雷托分佈兩個模型)和分位數回歸var模型;然後在此基礎上將六個var模型(包括上述三種模型、歷史模擬法、 riskmetrics方法以及蒙特卡洛法)實證應用於估計上證指數、上證180 、深證成指、深證綜指95 var和99 var ;同時採用區間預測法、損失函數法和符號檢驗法對這些var模型進行了選擇評估。One of those routes ? always the same one ? led to food. ( 2 ) the researchers measured how quickly the animals learned by seeing how long it took hungry birds to choose the correct route on five of six consecutive tests
在6個連續實驗的5個實驗中,研究人員通過觀察饑餓時這些雞選擇正確路線所耗費的時間,從而測算出它們的學習速度。Compared with the traditional method, the digital image processing method has many advantages in measuring the deformation of soil specimen in triaxial test, such as higher accuracy, non - contact measuring process, and undisturbed specimen. it is valid to measure the deformation in large scale. it can select the section of specimen freely to measure the axial and radial deformation directly
應用數字圖像測量技術量測三軸試驗試樣的變形,有許多傳統測量方法不能比擬的優越性:較高的變形測量精度;非接觸式變形測量,不擾動試樣,不干擾試樣的變形;適用於三軸土樣的大變形測量;可以任意選擇測量斷面,實現三軸試樣軸向變形和徑向變形的直接測量;可以在試樣變形測量的同時用圖片的形式記錄三軸試驗的全過程,便於試驗結束以後對試樣變形的重新分析和研究。From selecting machine framework, confirming sensor, designing circuit and programming to the last measuring spheriform workpiece, the perfect result is attained at last
從機構選擇、測量傳感器確定、電路設計、軟體編程到對球殼類零件進行實際測量,最終得到了較為理想的實驗結果。I therefore believe that we are appropriately qualified and experienced to assist with the interpretation, selection, testing and installation recommendations of spds in harsh electrical environments
因此我相信我們有足夠的經驗及資格,對電力環境惡劣條件下應用電涌防護器,協助解釋、選擇、測試、安裝建議。分享友人