chemical characteristics 中文意思是什麼

chemical characteristics 解釋
化學特性
  • 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...
  • characteristics : 產品性能描述
  1. The results indicate that : 1. the main physical and chemical characteristics vary regularly : with rising of the altitude, there is a transition from silt > sand > clay to sand > silt > clay in the mechanical composition ; the argic horizon emerges below the altitude of 1600 meters ; the content of organic matter is enrichment, the content of organic carbon of epipedon is higher than 20 g / kg, while the content of organic carbon increases with increasing of altitude, and in the altitude of 3500 - 3700meters, the soils under the meadow have the maximum content organic carbon ; the soils appear acid - slightly acid reaction, the ph decreases appreciably and acid strengthen with increasing of altitude ; the soils higher than the altitude of 2500 meters are base unsaturated, indicating the soil leaching is strong, the ph and bs are distinct plus correlated ; the contents of sio2, al2o3, and fe2o3 of the soil body and clay are all relatively stabilization ; in the soil body, the content of sio2 is much high and cao is very little, the total contents of sio2, a12o3 and fe2o3 occupy 92 % of the mineral parts, the sequence of mineral elements is : sio2 > al2o3 > fe2o3 > k2o > mgo > cao > tio2 > mno

    研究結果表明： 1太白山南坡土壤的主要理化性質隨海拔高度的上升呈有規律的變化：隨海拔高度上升，機械組成由粉粒砂粒粘粒逐漸過渡到砂粒粉粒粘粒，海拔1600m以下出現粘化層；土壤有機質豐富，表層有機碳含量一般在20g kg以上，有機碳含量隨海拔高度升高而相應增加，海拔3500 3700m的灌叢草甸植被下有機碳含量最高；土壤呈酸性或微酸性，並隨海拔上升， ph值略微降低，酸性增強，海拔2700m以上的土壤多呈鹽基不飽和狀態，表明土壤淋溶作用較強， ph值和鹽基飽和度呈極顯著正相關；土體與粘粒中的sio _ 2 、 al _ 2o _ 3 、 fe _ 2o _ 3含量相對比較穩定，土體中sio _ 2含量較高， cao含量較少， sio _ 2 、 al _ 2o _ 3和fe _ 2o _ 3含量之和約占土壤礦質部分的92 ，礦質元素含量的順序依次為： sio _ 2 al _ 2o _ 3 fe _ 2o _ 3 k _ 2o mgo cao tio _ 2 mno 。
  2. So the effect of eutrophication of dianchi lake of sediment ca n ' t be ignored. based on the research of modern sediemnt of dianchi lake, the thesis is concerned about some physical and chemical characteristics ( including magnetic susceptibility, ammoniac nitrogen and effective phosphprus etc. ) and thermodynamics analysis of spontaneous mineral of iron

    本論文主要以滇池現代沉積物為研究對象，對滇池現代沉積物的主要物理和化學性質（包括氨氮、有效磷、磁化率等） ，進行基礎性地分析研究並對滇池現代沉積物鐵的自生礦物進行了熱力學分析。
  3. We introduce the research progress about functional components in lily such as lily - polysaccharide, lily - brownii, colchicum autumnale, phenolic compounds acylglycerol, phospholipids, mineral element, lily dietary fiber, especially its elements and structure, physical and chemical characteristics, and its physiology and pharmacody function

    摘要介紹了百合中百合多糖、百合皂甙、仙水秋堿、酚酸甘油脂、磷脂、無機元素、百合膳食纖維等功能性因子的研究進展，尤其是在功能性因子的化學組成與結構、物化特性、生理與藥理功能等方面的研究。
  4. This course concentrates on the chemical characteristics of dyes and pigments, with emphasis on attempts to interpret their colouring and fastness properties in terms of the essential structural features of colourant molecules. some important intermediates and their uses in the synthesis of major chromophores are also indicated

    本課程主要針對染顏料化學結構與化學性質對其染色性、色光以及牢度的關聯予以探討，當然也探討一些重要染顏料以及中間體的制備。
  5. Mineral composition and chemical characteristics of albic soils in jianghuai drainage basin

    江淮流域白漿化土壤的礦物組成與化學特性的研究
  6. Caco3 not only affects soil physical and chemical characteristics but also causes co2 change in the air, because caco3 is main components among the total pool of inorganic carbon of soil. this paper systematically summarized and analyzed general development characteristics of soil profile caco3 in loess hill gully area including source, content, forming - condition, distribution and illuviation - depth of caco3, which will have the most important significance for the further studies on global soil and climate change

    碳酸鈣在土壤剖面中淀積的深度和類型是黃土高原土壤發育的重要標志，鈣積層是黃土高原土壤發育環境的歷史信息庫，同時土壤碳酸鈣作為土壤無機碳庫重要組成，它通過溶蝕后再結晶與大氣co _ 2之間進行物質交流來影響全球氣候變化。
  7. Testing physical and chemical characteristics of tow for cigarette - part 7 : moisture regain

    煙用絲束測定系列標準第7部分:回潮率
  8. The swertia belongs in gentianaceae. lt has about 154 species in the world, 79 species in china, about 35 species to be used for medicine, 20 species of medicinal plants can be found in sichuan and hubei provinces., which are used for medicine in dried herbs. their main functions are to clear heat, detoxify toxin, clear liver, eliminate dampness and normalize the gallbladder, for the treatment of jaundice, blood urination, hot and painful strangury etc. in the traditional medicine of india and japan, it is used as drugs bitter in taste to strengthen the stomach. the modern pharmacological studies show they have many biological activities. some drugs have been registered in the drug standards of the nation and the local government. the medicinal resources produced in sichuan and hubei provinces are abundant, which account for over half of the whole country. therefore, it is necessary to investigate the botanic origin and research the macroscopic, microscopic and chemical characteristics of them. its objective is to establish and improve the quality evaluation system in order to guide the exploitation and utilization for swertia medicinal plants

    獐牙菜屬（ swertia ）是龍膽科中的一個大屬，全世界約有154種，中國分佈的有79種，有藥用記載的約35種，其中川鄂產藥用種類約20種，均以全草入藥，常具有清熱解毒，清肝除濕利膽之功效，主要用於黃疸尿赤、熱淋澀痛等癥；在印度和日本傳統醫學作為苦味健胃藥使用。現代藥理學研究表明具有多種藥理作用。有的品種在國家和地方藥物標準中已有收載。
  9. Because of novel physical and chemical characteristics, carbon nanotubes are widely used as new sensing materials or modified materials. this paper mainly introduced the characteristic study of biosensors and gas sensors modified by carbon nanotubes. with large aspect ratio, carbon nanotubes have excellent biocatalysis

    納米碳管具有新穎的物理化學特性，為傳感器提供了新敏感或修飾材料，將其用於生物酶傳感器和氣敏傳感器，能夠使傳感器具有更好的敏感性。
  10. According to the chemical characteristics of organophosphorus pesticide and the principle of organophosphorus pesticide inhibit plants cholinesterase activity, based on determined enzymatic reaction conditions, the separation effect of different developing agent system on 11 organophosphorus pesticides by the means of thin - layer chromatography were researched, followed 10 qualitative analysis methods of organophosphorus pesticide residues were established

    摘要根據有機磷農藥化學特性及其對植物膽堿酯酶抑制的原理，在確定酶促反應條件的基礎上，考察了不同展開體系對11種有機磷農藥的薄層層析分離效果，建立了10種有機磷農藥殘留的定性分析方法。
  11. Effect of maturity of corn stalk on the chemical characteristics and nutritive value of silage

    刈割時間對青貯玉米秸稈飼料營養成分的影響
  12. Although skin can be a relatively impermeable barrier, a few drugs have just the right physical and chemical characteristics to cross it at reasonable rates

    雖然皮膚是相當不易穿透的障礙，但少數藥物的物理化學特性，恰好能讓這些藥物以合理的速率穿過皮膚。
  13. The soil physical composition, organic matter, total nitrogen, total phosphorus, total potassium and ph of salix psammophila ccheckerboard and contrast sand of dalate county were investigated in 2005, the effects of salix psammophila checkerboard on physical and chemical characteristics of sandy soil were analyzed

    摘要本試驗於2005年在達拉特旗測定了設置沙柳沙障的沙丘和對照樣地（未設沙障）的土壤機械組成、有機質、全氮、全磷、全鉀、酸堿度等理化指標，對比分析沙柳沙障對土壤理化性質的影響。
  14. Physical - chemical characteristics of mineral and amino acid complex compound in feed premix

    微量元素氨基酸絡合物在預混合飼料中理化性質的研究
  15. Physical - chemical characteristics of jinfushan karst spring in chongqing

    重慶金佛山碧潭泉巖溶泉水的物理化學特徵
  16. The text lays particular emphasis on the evaluation of the groundwater, involves the groundwater type, groundwater chemical characteristics, the amount of the water resource and the natural groundwater amount by using the method of numerical model after the calculation of the parameters, such as transmissivity, the coefficient of the flexible water release, with the data of the pumping test in the research zone

    採用visualmodflow地下水軟體進行數學模型的求解。在地下水流數學模型識別和驗證后，設計了兩種方案進行了地下水的預報。應用同位素分餾原理和質量守恆定律，確定不同含水層中地下水的成因及形成條件，建立本研究區地下水系統的水循環模式;採用模糊綜合評價方法對研究區內的水質進行了評價。
  17. Chemical characteristics of groundwater in salt - affected soil area in quzhou, hebei

    河北曲周鹽漬土區的地下水化學特徵
  18. Through the analysis of factors relating to aquiferous features, contact with water, groundwater recharge, run - off, discharge and groundwater chemical characteristics, we determine the hydrogeological conditions in the no. 1 mine field and suggest a basis for deposit exploition

    摘要通過對大南湖煤田一田含水層特徵、水力聯系、地下水補給、徑流與排泄及地下水化學特徵等因素的分析，確定該井田水文地質條件類型，為礦床開采提供依據。
  19. Granular filtering media. methods of test. physical and chemical characteristics

    粒狀過濾介質.試驗方法.理化特性
  20. Testing physical and chemical characteristics of tow for cigarette - part 9 : lubricant content

    煙用絲束測定系列標準第9部分:油劑含量
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