gradient ratio 中文意思是什麼

gradient ratio 解釋
坡降
  • gradient : adj. 1. 傾斜的。2. 【動物；動物學】步行的，能步行的。n. 1. 〈英國〉（道路的）傾斜度，坡度，坡路。2. 【物理學】梯度，陡度，（溫度、氣壓等的）變化率，梯度變化曲線。
  • ratio : n. （pl. ratios）1. 比，比率，比值；比例；系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達；求出…的比值；使…成比例。2. 將（相片）按比例放大或縮小。
  1. Many factors have effect on irrigation uniformity. with the growing of pressure, how is irrigation uniformity of trickle irrigation varying on different condition of the diameter of drip line, the distance of emitters, the length of drip line, the style of emitters, the flux ratio of emitters and the face gradient of little irrigation district. the consequence shows that pressure has puny effect on irrigation uniformity

    滴灌系統的灌水均勻度受眾多因素的影響，本文通過毛管的管徑、滴頭間距、毛管的管長、灌水器的類型和灌水器的流量系數不同的情況下，灌水均勻度隨壓力水頭變化模擬結果顯示，壓力水頭對灌水均勻度影響非常小。
  2. 5 layer number of cortical cells in stem was n ' t changed evidently, however the ratio between cortical thickness and stem increased as well as the ratio between vascular cylinder and stem, up the gradient of nacl concentration. 6 stem dm of suaeda salsa remarkably decreased with increasing nacl concentration, so did the vessel dm of xylem in the stem

    （ 5 ）隨鹽濃度的增加，莖皮層細胞層數未發生明顯的變化，但皮層厚度所佔莖的比重增加，維管組織占莖的比重同皮層厚度與莖半徑的比值表現出相同的趨勢。
  3. A. thalianas were respectively introduced by ion beam with a collection of donor dna having a gradient genetic relation with a. thaliana. in vegetative phase of tl, the ratio of phenotypic variation showed no distinct difference among these transformed populations

    用離子束介導與擬南芥菜親緣關系從近到遠一系列的外源供體的全dna轉化擬南芥菜，在轉化當代營養生長期，各轉化群體的表型變異情況沒有明顯的差別。
  4. The middle and lower parts of woodland and grassland had higher soil water contents during rainy season, which resulted from smaller evapotranspiration and more infiltrated water with a lower gradient. however, upslope runoff infiltration was another reason for hillslope with a lower cover ratio, such as bare land

    雨季林草地坡中下部土壤水分含量較高的原因，可能主要與其蒸散較小且坡度較緩導致入滲水量較多有關；但是對于植被覆蓋度較低的坡地（如裸地） ，坡中下部土壤水分含量較高還與上方來水有較大的關系。
  5. To prepare the functionally gradient materials ( fgm ) of polysilane - polyacrylate, the method of solution preparation was performed. based on the results of the back - scattered electron images and linear scanning of the polysilane - polyacrylate film ' s cross section, the dependence of polysilane - polyacrylate film ' s structure on molecules of polysilane and polyacrylate, pmma / pmts feed ratio and component concentration were investigated

    通過測試有機硅聚合物-聚甲基丙烯酸酯樹脂膜的結構，分析了聚有機硅（ pmts ） 、聚甲基丙烯酸酯（ pmma ）的分子量、 pmma pmts體系配比、組分濃度等因素對有機硅聚合物-聚甲基丙烯酸酯樹脂膜結構的影響。
  6. Channel gradient ratio

    河流梯度比
  7. Sum - of - gradient - magnitude measure is chosen to adapt all images with different enlargement according to analysis of focusing measures ’ character. for 3d bond targets, it is explained that why focusing window should be placed accurately. efficiency of the whole system is ensured by analyzing shift of focal plane when enlargement ratio is changing

    為了保證快速採集到鍵合器件的清晰圖像，通過對調焦評價函數特徵的分析，選擇能夠適應各個放大倍數顯微圖像的梯度作為系統的自動調焦評價函數;針對三維器件說明了調焦窗口正確放置的原則和必要性;分析了變倍過程中聚焦平面位置的變化規律，提高了自動調焦的效率。
  8. In order to solve the two problems, this paper adopts the method of reduced gradient to design precisely the parameter of friction and transmission ratio of gearbox and the gear teethes of the sixth gear of the second shaft

    本文通過對多種解決方案的分析，選擇了適當改變變速器一檔傳動比及二軸六檔齒輪齒寬這一簡單的方案使問題得到基本解決。
  9. In this article, the micromorphological structure of pva - copper gradient composite film ( mpgcf ) obtained from the electrochemical reduction of a swelling cathode films ( scfs ) was studied by the scaning electronic microscope and the relationship between the micromorphological structure of the composite film and the electrochemical conditions such as the weight ratio of pva to cuc12, the material of the electrode, the concentration of the medium solution, the dring time of scf, the power voltage, the time of the electochemical reaction etc, investigated

    本文採用「溶液還原法」制備了一種新型的聚合物基金屬梯度復合材料（ mpgcf ） ? pva /銅梯度復合膜。通過掃描電子顯微鏡觀察了梯度復合膜的形態結構並研究了其形態結構與電化學條件之間的關系。然後在此基礎上，探討了梯度復合膜的形態結構與力學性能之間的關系。
  10. Standard test method for measuring the soil - geotextile system clogging potential by the gradient ratio

    用降比法測量土壤-土工織物系統可能阻塞的標準試驗方法
  11. The thesis is the initial research content of the project " bucket foundation and unstability mechanism research influenced by bucket foundation on silty. sand seabed ", which is supported by the national natural science fund. it mainly carry about the research of seepage gradient in the process of suction penetration and unstability mechanism of silty sand in the bucket foundation, and it also discuss and analyze the penetration effect of bucket foundation of the different ratio size

    本文是國家自然科學基金項目「海上平臺桶形基礎及其作用下的粉質土海床失穩機制的研究」的前期研究內容，主要通過模型試驗對負壓沉貫過程的滲流梯度及其桶內粉質土的失穩機制進行研究，並探討和分析了不同比尺的桶基的沉貫效應。
  12. In short, adding appropriate amount rare - earths oxide can improve potential gradient greatly, decrease leakage current with voltage ratio no changed and make zinc oxide varistor with outstanding comprehensively performance

    總之，添加微量稀土氧化物能夠顯著提高氧化鋅壓敏閥片的電位梯度、降低漏電流，使其具有優良的綜合性能。
  13. So the optium content of ceo2 is 0. 06mol % in this study. when the la2o3 content is 0. 04mol %, potential gradient is the highest, and improves about 57 %, voltage ratio is lower, leakage current is minmum

    當la _ 2o _ 3含量為0 . 04mol時，氧化鋅壓敏閥片的電位梯度達到極值，與不含la _ 2o _ 3的氧化鋅壓敏閥片相比提高約57 ，且壓比較小，漏電流最低。
  14. So the optium content of nd203 is 0. 04mol % in this study. when the ceo2 content is 0. 06mol %, potential gradient is maximum, improves about 30 %, voltage ratio is lower, and leakage current is the lowest

    當ceo _ 2含量為0 . 06mol時，氧化鋅壓敏閥片的電位梯度達到極值，比添加ceo _ 2前的電位梯度提高約30 ，且壓比較低，漏電流最小，因此本實驗ceo _ 2添加量的最佳值為0 . 06mol 。
  15. Friction - reduction mechanism of dlc gradient film could be attributed to its smooth and hard amorphous structure. the hemocompatibility of dlc gradient film had been evaluated by investigating platelet consumption ratio, blood protein adsorption and platelet adhension and morphology on surface of materials

    Dlc梯度薄膜材料與ti6a14v合金材料的血小板消耗率相差不大，但是dlc梯度薄膜材料對血漿蛋白的吸附明顯低於ti6a14v合金材料，可以預料血小板在dlc梯度薄膜材料表面粘附也會較少。
  16. The different ratio and dosage of composite surfactants were researched about the polymer latex ' s stabilization and structure. these copolymers and homo - polymer blend to prepare self - structure gradient film. to prepare the functionally gradient materials ( fgm ) of polysilane - polyacrylate, the method of emulsion mixture was performed

    各種均聚物、共聚物膜的水滴接觸角顯示，單體tris的含量越高，膜的水滴接觸角越大，這也表明共聚物的表面能隨tris的含量呈梯度變化。
  17. Secondly, the dynamic features, surplus torque and loading gradient features of ptss are analyzed by the couple model between the rudder and the eals. it can be concluded that the surplus torque is related directly to the velocity of the rudder, and the loading gradient is the disturbing inverse ratio from the surplus torque to the closed - loop model, which shows the scaling relationship between the input and the disturbance signal act on the eals. it also can be concluded that, under the same dynamic specification, it is more difficult to realize the small loading gradient

    然後，採取把系統模型轉化為舵機和負載模擬器相互耦合作用的形式，對被動式力矩伺服系統動態特性、多餘力矩和加載梯度一一進行理論分析，得出:多餘力矩與舵機運動速度直接相關;加載梯度是在系統閉環模型中，與多餘力矩相關部分模型幅值大小成反比的系數，體現了被動式力矩伺服系統的指令信號和擾動信號之間的比值關系，從而在相同的動態指標下，小加載梯度實現更為困難。
  18. The results of experiment indicated that adding a appropriate amount of rare - earths oxide in zinc oxide varistor led to increase potential gradient greatly, decrease leakage current with voltage ratio no changed. when the nd2o3 content is 0. 04mol %, potential gradient of zinc oxide varistor is maximum, improves about 65 % compared with zinc oxide varistor no containing nd2o3, voltage ratio and leakage current are the lowest

    當nd _ 2o _ 3含量為0 . 04mol時，氧化鋅壓敏閥片的電位梯度達到極值，與不含nd _ 2o _ 3的氧化鋅壓敏閥片相比提高約65 ，且壓比最低，漏電流最小，因此本實驗nd _ 2o _ 3添加量的最佳值為0 . 04mol 。
  19. The proportions of large, middle and small patches were small patch > middle patch > large patch in all gradient zones. from suburbs to secondary forests, the area ratio of middle and small patches was increased, but that of large patches was significantly decreased

    大、中、小斑塊的數量比例在各梯度區之間都是小斑塊數量比中斑塊數量比大斑塊數量比。沿城區到天然次生林區方向，中小斑塊的面積百分比逐漸增大，而大斑塊則呈明顯的下降趨勢。
  20. Stream gradient ratio

    河床坡度比
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