ph paper 中文意思是什麼

ph paper 解釋
ph試紙
  • ph : PH ＝public health 公共衛生。【化學】表示氫離子濃度的倒數的對數的符號。
  • paper : n 1 紙；裱墻紙。2 報紙，報。3 收據；債券；證券；票據；匯票；鈔票（＝paper money）。4 〈pl 〉身份...
  1. Quartic ph curves are studied. their contribution of cusps and inflections are discussed in this paper. a first - order hermite interpolation by quartic ph curves is obtained

    文中還研究了四次ph曲線，討論了其尖點和拐點的分佈情況，得出了四次ph曲線的一階hermite插值的解。
  2. In this paper, by shorting the length of deae - cellulose column and increasing the ph of elution solution, one kind of go isozyme was purified rapidly from green leaves of spanictu brassica parachinensis bailey and vigna unguiculatew. ssp. sesquipedalis ( l )

    本文通過一種改進后的方法，即通過縮短deae - cellulose - 52柱的長度，以及提高洗脫液的ph ，可在9h內從菠菜、菜心和豆角綠葉中純化go同工酶。
  3. The paper fristly compared the fertile soil with the incinerated sterile soil on the number of micro - algae, soil ph value, soil organic matter soil available phosphorus and soil nitrogen. and then, the author put fertile soil, which included micro - algae, proportionally into sterile samples and cultivated them respectively under illumination condition ( micro - algae can live and reproduce ) and dark condition ( micro - algae will die in some time ). the above indices were measured in 0, 30, 60 and 90days respectively, the analyse of the interrelation between the change of micro - algae ' s number and the changes of soil ph value, soil organic matter, soil available phosphorus and soil nitrogen indicated : ( l ) soil micro - algae which were native to fertile soil conld adapt to the changed circumstance and light acted as a decisive role to the distribution of soil micro - algae. under dark condition, the micro - algae ' s number declined gradually and went to zero in the end, while under illumination condition, on the 90th day, the micro - algae ' s number of per gramme was 6 - 7 times more than that of the beginning

    本文首先對肥沃土壤與經高溫焚燒后的貧瘠土壤中的微藻數量、土壤ph值、有機質含量、有效磷含量和全氮量進行比較研究，然後將包含微藻的綠化苗圃地肥土按不同比例接種進入貧瘠土樣中，分別在光照條件和黑暗條件下進行培養，在0天、 30天、 60天和90天分別檢測以上指標，比較有光條件和無光條件下，即有藻條件和無藻條件下貧瘠土樣所發生的變化，並分別對微藻數量的變化與土壤ph值、有機質含量、有效磷含量和全氮量的變化之間做相關性分析，以評估肥沃土壤中的微藻接種進入貧瘠土壤后的生長情況以及對貧瘠土壤的改良作用。研究結果表明： （ 1 ）土壤微藻對環境有較強的適應能力，且光照對其分佈起了決定性的作用。
  4. This paper introduces the development process of wastewater disposal, it ' s auto control system, the level of nowadays and several new techniques of china and foreign countries. the immanent structure, control rules, main features and design methods of auto control systems in wastewater disposal process are studied in this paper. aiming at four typical parameters, such as temperature, dissolved oxygen, ph and the planes of water, the distributed control system is designed, composed by pc called epigyny computer and scm 8098 called hypogyny computer, and some sensors, shift deliver utensils and related meet orifices of parameters gathering and figures communication

    本文介紹了國內外污水處理及其自動控制系統的發展過程、當今水平和提高自動化程度的若干新技術；研究了污水處理自動控制系統的內在結構、控制規律、主要特點和設計方法；選取污水處理中的典型參數溫度、溶解氧、 ph值和液位等為控制對象，設計了以個人計算機為上位機、以8098單片機為下位機，並輔之以傳感器、變送器及相關介面單元所構成的二級集散控制系統（ dcs ） ；介紹了幾個主要程序模塊的設計思路、工作過程，這些程序模塊是：用高級語言visualbasic6 . 0開發的上位機人機交互界面程序、數據處理和圖表輸出程序，用執行效率高的匯編語言開發的下位機數據採集與系統監控程序、上位機與下位機之間的數據通信程序，匯編語言與vb之間的轉接程序，等等。
  5. So we could measure the ammonia by the intensity changes. in this paper, effects of ammonia and ph on response character of the probe with different interpolymerization materials " proportion, different porosity, and different amount of indictor were investigated

    我們對光纖探頭進行了研究，考查了不同交聯度，不同致孔劑量，不同指示劑濃度的光纖對不同濃度的氨溶液響應及其對ph的響應性質。
  6. Paper, board and pulps - determination of ph of aqueous extracts - hot extraction

    紙紙板和紙漿.水提物ph值的測定.熱萃取
  7. This paper accomplishes the following researches : firstly, the paper analyzes the characteristics of ph and orp by means of lots of experiments, which show that both ph and orp are nonlinear and have large lag

    本文主要包括以下幾部分內容：首先，在大量實驗的基礎上分別分析了ph和orp的對象特性。實驗表明， ph和orp都是非線性、大滯后的對象，而且orp的滴定曲線存在很大的不確定性。
  8. Paper board and pulp - determination of ph of aqueous extracts

    紙紙板和紙漿水抽提液ph的測定
  9. This paper present a sufficient and necessary condition of constructing quintic ph curves and analyze the geometric meaning of the control polygon

    本文給出了構成五次ph曲線的充要條件，分析了其控制多邊形的幾何意義。
  10. Part i this paper has minutely studied the interaction between ag ( i ) and serum albumin. the binding of ag ( i ) to human serum albumin ( hsa ) or bovine serum albumin ( bsa ) has been studied by equilibrium dialysis at ph ( 5. 4 ). the scatchard analysis indicates that there exists several strong binding sites of ag ( i ) in both hsa and bsa. a notable hysteretic effect has been observed in the interaction of ag ( i ) with hsa or bsa using uv - visible spectrometry at ph ( 5. 4 ), which shows that the binding between ag ( i ) with hsa or bsa may induce a slow transition of hsa or bsa from the conformation of weaker affinity for ag ( i ) to one of stronger affinity ( a - b transition ). the rate constants and activation parameters of this transition parameters of this tansition were measured and discussed. the binding equilibrium has been also studied by resonance light - scattering spectrum ( rls ) and flurescence quenching

    第一部分：等離子點ph （ 5 . 4 ）條件下，用平衡透析法和紫外光譜，熒光光譜，共振散射光譜研究了ag （ ）與人血清白蛋白（ humanserumalbumin ，簡稱hsa ）或牛血清白蛋白（ bovineserumalbumin ，簡稱bsa ）的結合。 scatchard圖分析表明， ag （ ）在hsa或bsa中有強弱兩類結合部位，通過計算機擬合獲得結合的逐級穩定常數值。紫外掃描發現ag （ ）與hsa或bsa的結合存在滯後效應，表明ag （ ）與hsa或bsa的結合可能誘導蛋白質構象發生緩慢變化（ a - b ） ，測得並討論了這一構象變化的速度常數和活化參數。
  11. Paper, board and pulps - determination of ph aqueous extracts

    紙張紙板的紙漿.水提取物中ph值的測定
  12. Paper, board and pulp tests. determination of ph of aqueous extracts

    紙張紙板和紙漿試驗.水提取物ph值的測定
  13. Paper, board and pulps - determination of ph of aqueous extracts - cold extraction

    紙紙板和紙漿.水提取物ph值的測定.冷萃取
  14. In this paper, concentrated sulfuric acid and titanium dioxide are used to prepare the tios04 solution that test later required under long time heat. the influences of reaction time and reaction temperature to yield of tioso4 are discussed. in the experiment of preparing tio2 powder, reaction temperature, ph values, material ratio, operation way, velocity of feed, calcining heat and time are researched by the principle of nucleation and growth in thermodynamics and kinetics

    在制備tio _ 2粉體實驗中，根據成核生長的熱力學和動力學原理，深入分析了沉澱反應時環境的溫度、 ph值、反應物配比、操作方式、加料速度等因素對ti （ oh ） _ 4粒度的影響，以及焙燒溫度和保溫時間等因素對制得的納米tio _ 2粉體性能的影響，得出了制備銳鈦型納米tio _ 2粉體的優化工藝條件。
  15. Brushed with the thickness of 1. 5 ~ 2. 0mm. it can improve the impermeability pressure up 3 times that of blank samples ; the crystalline reaction can continuously carry out, sealing the crack and waterproofing for ever if water is existent ; very good environmental adaptability, and can be used as normal at ph 3. 0 ~ 12. 0 ; moreover, the contrast tests of the performance of pt coating with two kinds of widely used waterproofing coating xypex and coprox were also carried out in this paper. test results show that the properties such as impermeability, self - rehabilitating ability and corrosion resistance are superior to those of the counterparts

    試驗結果表明， pt防水塗料具有如下的性能特點：具有良好的防水性能，塗刷厚度1 . 5 2 . 0mm ，抗滲壓力可提高3倍以上；在有水的條件下，結晶反應可以不斷進行，能實現自愈合、永久性防水；具有很強的環境適應性，在ph值3 . 0 12 . 0條件下均可正常使用；此外，本文還進行了pt防水塗料與同類型防水材料xypex和防水寶（二者都是目前應用廣泛的防水塗料）的性能對比試驗。
  16. Test method for properties of investment casting slurry - part 4 : the ph test paper method for the determination of acidity

    熔模鑄造塗料性能試驗方法第4部分: ph試紙法測定酸度
  17. The optimum technic conditions have been gotten in in preparaing high dispersive a1 ( oh ) 3 colloid by controlling reactant concentration, ph value, reaction temperature, matured time. they are the prereguisite to prepare nanopoder of a - a1203. this paper entirely and systematically studies the following three kinds of drying stages : oven drying, dehydration with alcohols and azeotropic distillation stage

    本文採用逐步逼近法進行了氫氧化鋁膠體的沉降實驗，對膠體形成的體系反應物的初始濃度、體系的ph值、反應溫度和膠體的陳化時間進行了系統優化，並獲得了制備高分散氫氧化鋁膠體的最佳工藝參數；此膠體經過過濾、 80下烘乾后所得樣品，在掃描電鏡下直接觀察其粒徑為50nm ，且分佈范圍窄，顆粒的表面清潔，為球形。
  18. In order to obtain the mn - zn ferrite precursor particle which has itra - fme property, the optimum technological condition was obtained through the orthogonal experiments in this paper. in the co - precipitation procession of preparation the leading factors that affect the size of the particle are ratio of the ion concentration ( a ), ph of the reaction ( b ), temperature of reaction ( c ), and aging time ( d )

    本文通過拉丁正交試驗，以粒徑尺寸為考察目標，將離子濃度比（ a ） ，反應ph值（ b ） ，水浴溫度（ c ）和陳化時間（ d ）作為四參量，利用每一參量為變量進行試驗確定各參量值，從而確定製備超細錳鋅鐵氧體前驅體粉末的條件。
  19. Nc machining requires " interpolation " algorithms that accurately and efficiently generate sequences of reference position, distributed according to a prescribed feedrate function, along the tool paths. this paper present a systematic derivation of the proper taylor series coefficients for variable feedrate interpolators. when the path is ph curves, detailed formulations for instances are presented where the feedrate v is specified as a constant, the function of the time t, the arc length s and the local curvature k

    對于nc加工要求插值演算法沿著刀具路徑準確、有效的生成參考點序列（根據預先指定的速率函數進行分佈）的實際工程需要，本文系統地推導了變速率插值運算元的泰勒系數，給出了當路徑為ph曲線，速率v為常數，及時間t 、弧長s 、曲率k的函數時具體的插值運算元。
  20. In this paper, the optimum conditions of catalyst preparation were found by studying the influences of the sol - gel process parameters on the crystal structure of the nanometer la1 - xsrxmno3, such as the value of original solution ph, the temperature of water bath, the baking temperature of sol

    本文研究了採用溶膠-凝膠法制備納米鈣鈦石型氧化物催化劑過程中，初始溶液ph值、水浴溫度、焙燒溫度對納米la1 - xsrxmno3晶體結構影響。
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