head difference 中文意思是什麼

head difference 解釋
水頭差
  • head : n 1 頭，頭部，首。2 頭腦，才能；智力，想像力，理解力。3 前部，上部；頂端，尖突部；船長；（書頁等...
  • difference : n. 1. 差異，差別。2. 不和，爭論。3. 【數學】差，差額。4. 【邏輯學】特殊性。vt. 〈罕用語〉區別，使有差別。
  1. When the design pressure of the reactor / regenerator is less than or equal to the design pressure of the main fractionator, or there is some absolute mechanical limit to the regenerator pressure ( plus the static head difference between the regenerator and reactor ) that is less than the main fractionator design pressure, the units do not need large relief valves on the main fractionator

    當所設計反應器或交流熱換器的壓力小於或等於主分餾器，又或者有些機械上無可避免的限制（還有就是兩靜電頭的不同）小於交流熱換器的壓力，其時整個部件就不需要大的調劑電子管了。
  2. The penetration test study the disturbance of soil in difference location. by using finite element method, the paper study the stratum movement and the earth surface deformation caused by pipe jacking, analysis the construction parameter such as head pressure, deflexion, friction force impact on earth surface deformation, give the distributing rule and range of additional soil pressure in soil

    採用有限元計算分析的方法，對頂管施工引起的地層運動及地表位移進行研究，分析了機頭土壓力、機頭偏斜、摩阻力等不同施工參數對地表變形的影響以及附加應力在土中的分佈規律和影響范圍。
  3. Over pumping of ground-waters produces a difference in hydrostatic head in favor of the seawater.

    過量抽取地下水時，產生利於海水的流體靜力學水位差。
  4. The difference in sensation over the skin of her head, and the nose is because of the disturbance in the small nerve fibres for sensation

    目前頭部皮膚及鼻子感覺不同是因為感覺系統的細小神經纖維干擾所引起的，這在術后十分常見。
  5. Based on the preliminary knowledge of color coordinate, color space and color difference, in chapter 4, we focus on the image preprocessing, that is the gamut mapping between the color paper and the crt displayed image. color correction and its realization of our lcos digital image print head are also given in this chapter

    在第四章，我們重點研究的用於數碼沖印的顏色校正模塊及其實現，這一部分在簡要介紹色坐標與顏色空間，色差計算公式的基礎上，將重點放在數碼彩擴機目標色域以及源色域色域映射方法，密度計密度空間以及色度空間映射關系，即時色度與密度空間的關系等的研究。
  6. The result shows that the trench wall failure at shallow depth is the major failure mode of the slurry - supported excavation, and that the length of the excavated trenches and the difference between the slurry head and the water level are the key parameters controlling the stability of the slurry - supported excavation

    結果表明，淺層槽壁失穩是泥漿護壁開挖的主要失穩型式，開挖槽段的長度和泥漿液面與地下水位面的高差是控制泥漿護壁開挖穩定性的關鍵參數。
  7. Also, the difference in pressure between any two points in a bed is roughly approximated by the static head of bed between these points.

    還有，床層中任意兩點間的壓差大致等於這兩點間床層靜壓頭。
  8. Reading methods of the vacuum gauges by means of the head difference in the hydrostatic pressure

    通過液體靜壓力壓頭差讀取真空計的方法
  9. 1 it struck me that it could not really make any difference whether the artist begins at the head or the tail or the belly or the foot of the horse, if he really knows his business

    我突然間覺得，一個真正精通繪畫的畫家，無論是從頭還是從尾，從腹部還是從腳開始畫馬都毫無區別。
  10. Then the isoparametric finite - difference three - dimensional transient groundwater numerical model is presented. visual modflow, the most popular standard visualization software package approved by the hydraulic scientists and technicians on simulating the groundwater flow is used to simulate and calibrate the groundwater level and quantity of the research area. at last, the changes of the hydraulic head and the produced quantity in the future were predicted according to the tested parameter and the modified model

    在水文地質概念模型的基礎上，進一步建立了研究區完整的三維有限差分非穩定流數學模型，利用目前國際上最盛行，且被各國同行一致認可的三維地下水流模擬軟體? ? visualmodflow對該區地下水的水位和水量進行模擬求解，最後，利用識別的參數和驗證后的模型預測了今後的水位變化趨勢和可開采量。
  11. Mandarin tone is characterized for tone level and tendency of pitch curve, so head - tail difference and relative tone level rate are determined as tone features for chinese tn - syllable word ; head - tail difference and tone level at the beginning of syllable are determined as tone features of syllable in continuous speech

    漢語聲調主要由基音曲線的調位高低和走向決定。因此，本文選擇頭尾差和相對調位比作為三字詞音節的聲調特徵；選擇頭尾差和音節起點調位作為連續語音中音節的聲調特徵。
  12. The researchers could not see any difference between the players who headed ten or twenty shots, nor between headshooters and a matched control group that did not head any shots

    研究人員發現不光是完成10次與20次的運動員沒有任何的差別，連頭球組與另一個空白對照組（沒有參與頭球）也沒有差異性。
  13. ( 2 ) feclsused as a coagulant when the water quality after filtration has tiny difference in the direct filtration process, compared with the finer sand media, the velocity increase of the water head loss of the coarser sand media is slower, and its filtration cycle is longer

    （ 2 ）在直接過濾過程中，採用fecl _ 3作為混凝劑、出水濁度保持基本相同時，粗濾料的水頭損失增長速度較慢，過濾周期比較長。 （ 3 ）
  14. There are several important issues to that attention should be paid in the design of test bed, such as the measurement of the temperature difference between the inlet and outlet of test section and the temperature of cooling water in the inlet and outlet of condensing tubes, filled volume of the steam boiler and its level control, the determination of the natural acting head of high temperature tank and design of the cooling water flow of measuring tank

    試驗臺由高溫工質自然循環子系統、冷卻水機械循環子系統和計算機監測控制子系統構成，試驗段進出口溫差及冷凝管進出口溫度的測試、蒸汽鍋爐充注量及液位控制、高溫水箱自然作用水頭的設計、冷卻水流量計量水箱的設計等是試驗臺設計中值得重視的問題。
  15. Corresponding to the correct water hammer mathematic model ( 3 ), the character difference equation is by comparing the new mathematic model with the old mathematic model, the last calculative part of paper argues the falseness of the current water hammer mathematic model, makes use of the improved character line method to analyze the correct mathematic model ( 3 ), studies all kinds of facts " impact on water hammer pressure value and water hammer phenomenon attenuation, points out that, in the long pipeline system, the subarea calculation of head loss along with flow rather influences the calculative results of water hammer pressure, advices to take the subarea calculation of head loss along with flow into account in the water hammer calculation of the long pipeline system

    對應于正確的水擊數學模型（ 3 ）的特徵差分方程形式如下c ，弓+吼川一c ，唱一幾弓扮幾rv另卜川= o幾代+吼川一幾唱一吼嶸{一c :腳丸}唱} ? 「本論文在最後的計算部分，通過對新老數學模型的數值計算比較，進一步論證了當前水擊數學模型的不正確性。並且應用改善了的特徵線法對正確的數學模型（ 3 ）進行了計算分析，研究了各種因素對水擊壓強值和水擊現象衰減的影響，指出在長管道系統中，沿程水頭損失的分區計算對水擊壓強的計算結果影響較大，建議在長管道系統的水擊計算中應按分區進行沿程水頭損失的計算。
  16. The ratio of total length / tail length is the same as that nikerlski ( 1960 ) and wuxianwen ( 1964 ), different with that zhangjuemin ( 1995 ). head length / eye length is as same as nikerlcki, but it has difference with zhangjuemin ( 1995 ) and wuxianwen ( 1964 )

    頭長/眼徑與尼科爾斯基東北農業大學摘要2002年11月（ 1960 ）的結果基本相同；而與伍獻文（ 196 ） 、張覺民（ 199 ）等的結果存在一定的差異。
  17. Finally, this paper has investigated the relation between the thickness of piston head and temperature field, thermal stress : the whole temperature field will rise while the thickness has been reduced. the temperature difference will also go up

    最後，本文研究了活塞頂部厚度對活塞溫度場和熱應力的影響規律：活塞頂部厚度越小，活塞的整體溫度將要升高，活塞頂部與活塞內腔的溫差也要增大。
  18. The difference between the current load ( the actual demand ) and usable capacity from load testing is the real reserve capacity ? the amount of " head room " for growth or the ability to handle variation in demand

    在從壓力測試下得到的當前壓力（實際需求）和可用容量不同的地方在於真實的存在的容量-可增長的峰值儲備總計或者處理需求不斷變化的能力。
  19. The difference between the current load ( the actual demand ) and usable capacity from load testing is the real reserve capacity ? the amount of & quot; head room & quot; for growth or the ability to handle variation in demand

    在從壓力測試下得到的當前壓力（實際需求）和可用容量不同的地方在於真實的存在的容量-可增長的峰值儲備總計或者處理需求不斷變化的能力。
  20. Changing of the riverbed conductance provides high change in river gaining rate compared to change in river losing rate. this difference can be attributed to aquifer anisotropy, river penetration, hydraulic balance between groundwater head and river stage

    其中河床沉積物滲透性的改變引發的河流得水率變化明顯大於河流失水率的變化，分析其原因為含水層的各向異性、河流的滲漏、河水與地下水的水力均衡。
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