正向性 的英文怎麼說

中文拼音 [zhēngxiàngxìng]
正向性 英文
positive tropism
  • 正 : 正名詞（正月） the first month of the lunar year; the first moon
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 正向 : [電學] forward direction正向傳導 forward conduction
  1. Taking the silicon diode as an example, through an analysis of the diode ' s current - voltage characters and the avometer circuit, the writer finds out the reasons for the differences in the amount when measuring the positive direct current equivalent resistance with different ohm grades

    摘要以硅二極體為例，從二極體的伏安特性及萬用表內部電路的角度，分析了用指針式萬用表的不同歐姆檔位測量二極體的正向直流等效電阻時，其值緣何不同。
  2. Increasingly complicated the need of the well drill and petroleum extraction busywork, the development direction of the drill and petroleum extraction tools is consummater capability, complexer configuration and high - effect working. the development of the drill and petroleum extraction tools bring forward higher request for research tester and experiment means at the same time

    為適應日益復雜的石油鉆采作業的需求，鉆采工具正向著性能完善、結構復雜、施工高效的方向發展，並對工具研製中的試驗裝置和試驗手段提出更高的要求。
  3. The spermatozoids of primitive plants are often positively chemotactic, swimming toward the female organs in response to a chemical secreted by the latter

    較原始的植物的游動精子有正向的趨化現象，總是游向由雌性器官所分泌的物質。
  4. Analysis the cause of channel disaccord of gain and phase, give four methods of gain and phase calibration, computer simulation illustrate the that the methods are effective. in the chapter 4, the basic relation of phase interferometer of one dimension, two dimensions, and the measurement accuracy and the approach of solving the phase ambiguity in the phase interferometers have been discussed in detail

    第四章對相位干涉儀進行了較為詳細和系統的研究，給出一維相位干涉儀的基本關系式，分析了五通道相位干涉儀測向定位演算法及其性能指標，對解相位模糊問題進行了探討，在ccss中模擬了測向演算法，模擬結果證明了演算法的正確性。
  5. Then following reality constituent of engine and connecting component interface, a nonlinear signal cylinder engine model has been created, though fire interval and fire order, a control - oriented four cylinders engine is build. following dynamometer is seen as load, performance of engine is simulated and researched under the condition of constant torque and speed, validation of the math and simulation model have been confirmed by comparison result between simulation with test result of engine performance simulation software dyno

    按照發動機的實際組成，根據各部件的介面類型連接模型庫中的部件，建立了單缸發動機非線性模型，在此基礎上，依據發動機實際發火間隔和順序，建立了面向控制的四缸汽油機模型，並以測功器為負載，通過恆轉矩和恆轉速方式進行了發動機性能模擬和研究，模擬結果和發動機動力性能模擬軟體dyno測試結果的對比驗證了數學模型和模擬模型的正確性。
  6. The proposed schemes include fec and selective retransmission

    提議的方案包括fec （正向糾錯）和選擇性重發。
  7. Roots tend to grow towards water in a soil, they show positive hydrotropism.

    根的生長傾向于有水的土壤，表現出正向水性。
  8. Schottky barrier diode is a kind of majority carrier device, using the contact barrier formed between metal and semiconductor to work. it has the advantages of low turn - on voltage and high response frequency, compared with pn junction diodes

    肖特基二極體是利用金屬與半導體之間接觸勢壘進行工作的一種多數載流子器件，與普通的pn結二極體相比，它具有正向導通電壓低，響應速度快等優良特性。
  9. Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece

    將液體火箭發動機燃燒室的冷卻通道設計為斜航線（等傾角螺旋線）槽形，可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大，所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點，提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜，手工編制數控加工程序難度大.為了解決數控加工程序的編制問題，研究了斜航線的數學模型，開發了自動編程軟體系統.使用該系統，可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大，加工難度大，是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗，研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術，已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用，驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功，對其他相似類型零件的加工亦具有參考意義
  10. Further, their luciferase activities were determined in ty medium, and showed that tn5 - 1063 was inserted directly into loci downstream of promoters in 042bm genome

    它們都表現發光酶活性，表明轉座子正向插入到基因組中的某個啟動子下游。
  11. In light of the elastic thin plate theory, the author induced equilibrium differential equation of bi - direction cellular slab, which was proved correct through analysis and comparison to result of ansys to with theoretical calculation. through the deflection and bending moment coefficient calculation of bi - direction cellular slab under various boundary conditions, the author brought forward the theory that the deflection of mid - span and bending moment coefficient calculation of mid - span and support of bi - direction cellular slab could be in accordance with solid plates ", which could satisfy the precision of engineering

    本文根據彈性薄板理論，導出了雙向空腹板的平衡微分方程，並通過理論計算和通用有限元程序ansys結果對比，驗證了其正確性；通過對各類邊界條件下雙向空腹板撓度和彎矩系數的計算比較，本文提出：雙向空腹板跨中撓度及跨中、支座彎矩可使用本文空腹板剛度公式查找現有的實心板撓度彎矩系數表進行計算，完全能滿足工程精度要求。
  12. At this stage sea - level westerlies are strong and zonal in character and they lie poleward of their normal position

    在這一階段海平面上西風氣流很強且屬緯向性的，它較正常位置偏向極地（北半球上偏北或南半球偏南） 。
  13. Procreant knowledge expression and forward inference engine are adopted in the method of fault diagnosis based on expert system theory. in the fault diagnosis applying neural network theory, six kinds of improved arithmetic of back - propagation arithmetic, including gradient descent with momentum, variable learning rate back - propagation, resilient back - propagation, quasi - newton, levenberg - marquardt and conjugate gradient, are applied to diagnose the faults of electric load manage center and solid state power controller. different diagnostic results gotten by simulation are compared at last

    在基於專家系統的故障診斷方法中，採用了產生式知識表達和正向推理機制；在基於神經網路的故障診斷方法中，則分別採用了bp神經網路的附加動量法、自適應學習速率、彈性bp演算法、擬牛頓法、共軛梯度法和levenberg - marquardt法對電氣負載管理中心和固態功率控制器的故障進行診斷，並對由模擬得到的不同診斷結果進行比較。
  14. Conclusion : to understand the survivors ' biographical disruptions and trauma transformations, it is worthy to stand at positive and health as well as negative and psychopathology aspects, rather than simply evaluate the victims ' psychological reactions to the earthquake from a psychopathological viewpoint

    同時，女性較易顯現關照他者的態度，並賦予自身受創經驗的正向角度，而不會僅是從苦難的向度去看待所遭逢的災難事件。
  15. I mean, a straight man who likes to dance around in sequins

    我的意思是，一個正常性取向的男人喜歡佩戴亮片跳舞
  16. And for all his conceit and his german grumpy irony, he was pitiful with his flattened locks on his forehead and his wisps of uncombed hair sticking out behind. though he tried to conceal it under a semblance of anger and contempt, he was visibly in despair that the sole chance left him of testing his theory on a vast scale and proving its infallibility to the whole world was slipping away from him

    盡管他很自信，具有德國人的好抱怨的愛譏諷的性格，連同他那梳光的鬢角和腦后一撮撮翹起的頭發，都使他覺自己可憐，雖然他把這些隱藏在自己的憤怒和蔑視之下，但是他陷入絕望，因為用大規模的實驗來檢驗和向全世界證明地的理論的正確性的唯一機會，現在從他手中失去了。
  17. The aglycone, steviol, exhibited greater acute toxicity than stevioside in hamsters but not in rats. steviol was clearly genotoxic after metabolic activation, inducing forward mutations in bacteria and gene mutations and chromosomal aberrations in lung fibroblasts of chinese hamsters

    甜菊醇經過代謝活化后，基因毒性明顯，可引致細菌產生正向突變，以及使中國倉鼠的肺纖維原細胞產生基因突變和染色體變異。
  18. According to the structural model, positiveness of consumer prior expectations of the sponsoring brand regarding its altruism orientation and perceived persuasiveness of evidences communicated by the sponsoring brand regarding its altruism orientation are found to be exogenous constructs that generate juxtaposing effects, mediated by the three causal dimensions of the sponsoring brand ' s sponsorship behavior in the first order and dispositional of sponsor motivations in the second order, on perceived sponsor sincerity which is designated as the terminal endogenous construct of the model

    根據此實證結構模型顯示，消費者對贊助品牌利他倒像先前期望之正向性，與贊助品牌所傳播關于其利他導向證據被知覺之說服力，乃是被知覺之贊助者誠意此一終極內衍變項之並列外衍變向；消費者對贊助品牌之贊助行為之三個因果歸因構面以及對贊助者動機之內在本質歸因，分別為第一序與第二序之中介內衍變項。
  19. In addition, positiveness of consumer prior experctations directly affects perceived persuasiveness of evidence

    再者，先前期望之正向性也直接影響證據被知覺之說服力。
  20. Among the health behaviors of the sample, the score of the " no tobacco, alcohol and other drug use " is the highest, followed by the " unintentional and intentional injuries ", the " dietary behaviors ", and the " physical activity " is the lowest one

    研究結果發現：受測者之健康概念是整體、多元面向且較正向性的，以調適性健康概念得分最高，其次是安寧幸福性健康概念、角色功能健康概念，而以臨床性健康概念得分最低。
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