chemical degradation 中文意思是什麼

chemical degradation 解釋
化學降解
  • chemical : adj 化學的，化學作用的；應用化學的，用化學方法獲得的。n 〈常 pl 〉化學製品；藥品。 fine chemicals...
  • degradation : n. 1. 降級；免職。2. 退化；墮落。3. 【地質學；地理學】（地表的）剝蝕。4. 【化學】降解，遞降分解（作用）。5. 【物理學】（能的）退降。
  1. Chemical degradation is very slow so that it becomes more concentrated in successive stages of the food chain.

    化學的遞降分解作用十分緩慢，以致它在食物鏈連續各階段中變得更為濃縮。
  2. Quantitative analysis procedure of lignocellulose solid substrate including hemicellulose, cellulose and lignin, ignition method, volumetric method and soak extract method were utilized to study the changes of chemical components in lawn - grass and weeds during hydrothermal degradation with different conditions

    摘要運用木質纖維素固體基質半纖維素、纖維素和木質素定量分析程序等分析檢測了不同濕解工況下草坪草和雜草主要組分的化學變化。
  3. Degradation of o - nitrotoluene by complex chemical oxidation

    鄰硝基甲苯復合化學氧化降解研究
  4. After further purifing the isoloated bacteria, we classified and characterized them, according to their individual form, physiological and biochemical to characterize, characterize to bacteria genus. calculated the total of aerobic bacteria in soil of each senson, the total of bacteria of degrading omethoate, as well as the percentage of each degradation bacteria genus, and measured the physico chemical nature of each seasonal soil sample

    將分離到的菌株進一步純化后，按其個體形態、生理生化特徵，進行分類鑒定，鑒定到菌屬；計算出各季節土壤中的細菌總數、降解有機磷農藥氧樂果的細菌總數以及各降解菌屬的百分比，測出各季節土壤樣品的物理化學性質。
  5. Phbv will degrade at the processing temperature, which is much lower than its acute thermal degradation temperature. as the material for chemical fiber, phbv shows some special properties. when it was spun, the as - spun fiber was elastic and finally it would turn to be rigid

    作為化學纖維的原料，此類材料的初生纖維在固體狀態表現出的由彈性行為為主向塑性行為為主的轉變直至最後表現為剛性體特徵，直接影響著此類纖維的成形加工過程，成為其進一步發展的瓶頸障礙。
  6. Rubber - determination of carbon black content - pyrolytic and chemical degradation methods

    橡膠.碳黑含量的測定.熱解和化學降解法
  7. On this basis, adopt the plural linear regression method, regard peasant ' s per capita income as the dependent variable, per capita agricultural land area, unit agricultural land area chemical fertilizer use amount, agriculture total value account for gdp proportion and land degradation the index data ( land degradation fictitious variable, land degradation percentage and land degradation the array variable of the degree ) as the independent variable

    在此基礎上，採用多元線性回歸方法，以農民人均收入為因變量，人均農業用地面積、單位農業用地面積化肥使用量、第一產業總值佔gdp比例和土地退化指標（土地退化與否的虛擬變量、土地退化百分比和土地退化程度的序列變量）為自變量來分析。
  8. The study has investigated and compared soil physical, chemical, biochemical properties of eight stands on paired sites in mountainous regions of northeastern china, trying to look for the mechanism of soil degradation and the change trend of soil properties in different age of plantations in relations to forest productivity. the eight stands are 4 first rotation of larix olgensis plantations with different age classes, the second rotation of larix olgensis young stand, pinus sylvestris var

    本文通過固定和典型樣地，對東北山地不同生長發育階段落葉松人工林和二代落葉松幼齡林以及與二代落葉松幼齡林同一塊林地的樟子松幼齡林、天然次生林、落葉松水曲柳混交林等8個林型土壤質量進行了對比與分析，深入探討了落葉松人工林土壤質量降低的機理和不同發育階段土壤質量變化規律以及與森林生產力變化的關系，並提出了林地土壤質量調控措施。
  9. In this paper, by explored geo - physico - chemical prospecting method for looking for oil in prior prospect, the authors summarize a suit of prospective technique and program, which is valid to oil - geology trait of zhidan area and composed of ; oil gas geo - chemical prospect ( acid degradation of hydrocarbon, absorbed - fluorescent spectrum, ultraviolet radiation spectrum, methane carbon - isotope ) non seismic detection in favorable explorative area which confirmed by chemical prospect ( matural potential, gamma energy spectrum. accurately magnetic analysis ) resistively prospecting in anomalous area which confirmed by physicalprospect successful general evaluation of geo - physicochemical prospect

    通過勘探早期地質物化探綜合找油方法實驗，筆者總結了一套適合志丹探區石油地質特點的勘探方法組合和勘探程序：油氣地球化學勘探（酸解烴、吸附烴、熒光光譜、紫外光譜、甲烷碳同位素、蝕變碳酸巖）化探圈定的有利勘探區進行非地震物探（自然電位、伽瑪能譜、高精度磁測、土壤測氧）物探圈定的異常區進行電阻率測深勘探地質物化探成果綜合評價。
  10. Effects of forest community degradation on water chemical of karst shallow groundwater

    喀斯特森林群落退化對淺層巖溶地下水化學的影響
  11. The main effect factors include : 1. microbial species, which seem to have different degradation rate under varied circumstances and n - alkanes ; 2. physical and chemical properties of crude oil itself, which have an important effect on biodegradation, such as conglutination, boiling point, refractive index, ingredient and concentration of the oil ; and 3. culture condition of microorganism, under which the degrading activity of microorganism will be affected by surfactant, light condition, sorbent, nutrition, co - metabolite, oxygen, temperature and salinity during the inoculation of selected or indigenous microorganisms

    其中主要影響因素包括：菌種的影響，菌種在不同的環境中和對不同碳鏈長度的碳氫化合物表現出不同的降解效率；石油物質本身物理化學特性的影響，如石油物質在水體或土壤中的濃度以及石油的粘度、沸點、折射率等特性；生存環境條件的影響，在接種入高效率的降解菌或利用土著微生物進行降解時，降解率受到生存環境中各種條件的影響，如表面活性劑、光照條件、吸附劑的利用、營養鹽、共代謝底物、氧氣、溫度、鹽度等。
  12. The results of microbial degradation of the herbicide showed that nyb1 and nyb4 had special ability to degrade the chemical from those bacteria tested in cultured media added a series volumes ( 5 - 20 % in total volume ) of bacteria suspension while the concentration of the herbicide at 50 mg / l in the media

    在精喹禾靈添加濃度為50mg l的基礎培養基中，分別加入液量為總體積5 20 nyb1和nyb4菌株的培養液，降解試驗結果表明兩種菌株均對精哇禾靈的降解作用明顯。
  13. Based on analysis of soil physical, chemical and biological properties, soil properties and soil integrated fertility index ( iff ) of different successional series of subalpine coniferous in western sichuan were systematically studied. the results showed soil fertility degradation of subalpine coniferous forests was mainly related to decrease of soil organic matter

    從土壤物理、化學和生物學性質角度出發，系統地研究了四川西部亞高山針葉林不同演替階段土壤性質和土壤綜合肥力指標值，結果表明：川西亞高山針葉林土壤性質主要受土壤有機質的影響，人工林地土壤肥力質量退化主要由於有機質的減少並導致相關土壤物理、化學和生物學性質惡化。
  14. Agricultural intensification plays an important role in stabilizing the food production in china, while bringing about an increasing negative impact on the soil and eco - environment as a result of the long - term highly - intensive land use and agricultural chemical overuse, thus leading to degradation of soil physical, chemical and biological properties, which are demonstrated as soil nutrient imbalance, soil acidification, pollutant accumulation, and biodiversity deterioration and posing serious stress and threat to the ecosystem per se and the environment

    摘要集約化農業對保障我國糧食安全發揮了巨大的作用，但其長期的土地高強度利用和農用化學品過量投入的負面影響也日益顯現，導致的以土壤養分失衡、土壤酸化、有害物質積累、生物多樣性衰退等為主要表現形式的土壤物理、化學和生物學退化，給生態系統本身與環境都帶來了巨大壓力和嚴重威脅。
  15. The chemical degradation method established by edman in 1950 has been a routine approach for n - terminal sequencing and is widely employed by automated protein sequencer

    運用edman降解進行蛋白質n端順序測定已成為十分完善的技術，並已經實現了自動化。
  16. The typical result is increased chemical mn - off to the landscape, and with ensuing degradation, additional pressure for expansion, and so on

    典型的結果是增加了流人到環境的化合物，跟著發生退化、膨脹的額外壓力等現象。
  17. In original and jamming slightly vegetation, because dead roots, branch and leaves back to soil, soil organic matter higher, soil available phosphorus higher, too ; chemical and physical characters of soil were stabilization. the reason were original vegetation have more species and structure of community was stable. the degradation of fertility and structure of soil in secondary vegetation was influenced by change with structure and form of community

    在人為干擾小的原生性森林，植物種類豐富，群落結構穩定，植物死根系和枯枝落葉全部回歸土壤，土壤有機質含量高，養分呈有機態為多，故有效磷較高，土壤理化性質較穩定；次生植被群落土壤結構和肥力的退化是由於群落組成和結構的改變導致枯枝落葉成分和土壤發規白山地還小問沙消民俗一非定俗地征王卿喬忡旺w比收財育環境差異而引起，次生植被土壤的退化狀態隨植被退化程度不同而有差異。
  18. Macrophages or osteoclasts can heighten the consistence of hydrogen ions in part circumstance contacted with material or interior cells by chemical reaction, which can accelerate the degradation of the material. secondly, calcium ion and hydrogen ion were the prerequisite raw material of bone formation. and bounds of calcium ions and hydrogen ions produced by the degradation of material provide the activity of osteoblastics affluent material basis, which accelerated the formation of new bone

    實驗結果證明植入材料是以磷酸三鈣（ - tcp ）為主晶相，同時含有焦磷酸鈣、羥基磷灰石、無定形磷酸鈣晶相和非晶相，其化學組成與骨骼的無機礦物相組成相近，而且具有與骨骼相似的多孔網狀結構。
  19. A series of batch experiments were carried out to determine the chemical degradation and biodegradation parameters of herbicide dinoseb in various soil samples

    摘要利用一系列批實驗來研究地樂酚在不同土壤樣本中的非生物降解和生物降解，並對各土壤特性與降解參數的相關性作統計分析。
  20. Chemical degradation in zno - based varistors

    壓敏電阻的化學蛻變
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