酸堿度試驗 的英文怎麼說
中文拼音 [suānjiǎndùshìyàn]
酸堿度試驗
英文
acidity and alkalinity test-
The factors influencing on the performance of ash - jd such as the moore ratio of monomers, the reaction temperature and time, concentration, the ph value of reaction solution and the drippy speed of formaldehyde were studied carefully. through experiments, the optimum level of those factors was gained
論文詳細研究了反應單體的摩爾比、反應溫度、時間、濃度、反應溶液的酸堿度及甲醛的滴加速度等對產品ash - jd性能的影響,通過試驗,得到了這些因素的最佳水平。Testing of ethanol for industrial use - method for detection of alkalinity or determination of acidity to phenolphthalein
工業用乙醇試驗.第1部分:堿度檢測或對酚酞酸度的測定方法In the wet lab, phenol is tested for ph, solidification point, solubility in water, bromine index, color, and distillation ranges
在濕的實驗室中,酚為酸堿值,團結點被測試,水,溴指標,顏色和蒸餾范圍的溶解度。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。With the very low water to cement ratio, rpc has ultra - high strength high ductility and low permeability. in this paper, the compressive strength of rpc can reach to a high point with the number approximately 135mpa. as illustrated from the study results, we can approve some fundamental conclusions : there are big effects on rpc with deferent kinds and properties of raw materials and deferent curing conditions ; stress - strain curve shows the process of destroy with rpc samples ; x - ray diffraction analysis indicates that heat treatment at temperatures 90 accelerate the hydration of rpc sharply, therefore, mechanical and microstructural properties of rpc are highly dependent on heat treatment ; it is believed that rpc materials have excellent resistance to chloride permeability ; during the heat treatment, the shrinkage of rpc developed quickly because of chemical reactions ; the rpc with slag mostly has the advantage of rpc without slag about resistance to solutions corrosion
研究結果表明:通過對rpc各組分摻量變化的研究,可以找到rpc的最優配合比;試件成型后的熱養護制度對rpc的性能影響巨大; rpc的抗壓應力?應變曲線可以反映出試件受破壞時微裂紋的擴展情況,剛纖維的摻入可以大幅改善rpc的韌性; rpc在成型后存在較大的收縮,而其中的化學收縮要遠遠大於乾燥收縮; rpc具有很強的抗氯離子滲透性能,漿體的密實度很高;通過x射線衍射實驗,可以發現rpc的膠凝體中ch晶體已經幾乎不存在,膠凝體主要由c - s - h凝膠和未水化水泥顆粒組成;在抗溶液侵蝕的實驗中,摻礦渣rpc的抗溶液侵蝕性能在絕大多數情況下要好於不摻礦渣試件,酸、堿溶液和浙江工業大學碩士學位論文摘要一些鹽溶液都會對rpc的結構產生侵蝕作用,但是機理各有不同。Standard test method for acidity in basic chromium tanning liquors
堿性鉻鞣革液中酸度的標準試驗方法( 3 ) the feasibility of manufacturing dry - mortar is discussed, replacing yellow sand with phosphor slag. ( 4 ) the feasibility of producing dry - mortar is analyzed, replacing sulphur aluminate low alkalinity cement by silicate cement. ( 5 ) study impact of the water quantity of sand on the strength of dry - mortar, and it is concluded that water quantity of sand can influence strength effectively and must be controlled seriously in production
( 3 )試驗研究了用磷渣替代黃砂配製干拌砂漿的可行性; ( 4 )試驗研究了用硫鋁酸鹽低堿水泥替代硅酸鹽水泥配製干拌砂漿的可行性; ( 5 )試驗研究了砂含水量對干拌砂漿影響,發現砂的含水量對干拌砂漿的強度影響較大,在生產中必須嚴格控制砂的含水量。In a word, wbaer can effectively remove micro - quantity hmi from dk with alkali metals, alkaline - earth metals and anions at high concentration. on the basis of lots of regeneration experiments of wbaer ( d301g ), the best regeneration manner ( regurgitation regeneration ), the optimal regeneration agents ( h2so4 and naoh ) and the optimum operating parameters of regeneration are obtained
論文進而對d301g型弱堿性陰離子交換樹脂進行了再生試驗研究,確定了最佳再生方式(逆流再生) ,最佳再生劑( h2so4和naoh )以及酸液再生時的最佳濃度范圍( 2 % 4 % )和最佳流速范圍( 3 4m / h ) ;並通過正交試驗確定了逆流再生過程中的最佳運行參數組合。The paper studied three aspects of extracelluar enzymes in sediments of the tidal flat wetland, namely 1 ) the distibution of five sorts of extracellular enzymes in sediments in the east end of chongming island along the elevation gradient or community succession series, the relationships between the activities of enzymes and the ecological factors, and functions of extracellular enzymes in the process of community succession ; 2 ) the effects of the heavy metal ions and edta on the activity of alkaline phosphatase in sediments of the east end of chongming island by adding and removing of heavy metal ions, discussing whether the activities of extracellular enzymes could be taken as the indicators for the environmental status ; 3 ) the variations of the activities of extracellular enzymes in sediments in the east end of hengsha island after the discarding clay
本文以長江口典型濕地?崇明東灘為例,首次研究了沿高程梯度或沿植被演替系列沉積物中堿性磷酸酶等五種胞外酶活性的空間分佈規律,分析了胞外酶活性與環境因子的相互關系及其產生機制,討論了胞外酶活性在濕地植被演替中的作用。同時以崇明東灘沉積物為對象,運用重金屬離子的添加和去除等方法,研究了重金屬離子對沉積物中堿性磷酸酶活性的影響,利用胞外酶活性的變化探討了崇明東灘重金屬污染的狀況。此外,本文還研究了橫沙東灘吹泥試驗工程對沉積物環境因子和胞外酶活性的影響並進行了對比分析。Methods for testing pigments for paints - determination of acidity or alkalinity of the aqueous extract
塗料用顏料試驗方法.第c3部分:水萃取物酸度和堿度測定The unconfined compressive strength, shearing strength and permeabi lity of stabilized soils were tested in laboratory, the strength of contaminated composite soils sampled with different ph and soaped in corresponding ph were compared. the results from experiments indicate that there exists a certain relationship between the soft soil properties and the unconfined compressive of grouted soil. with the increase of water content, porosity ratio, degree of porosity, plasticity limit, liquid limit and liquid index, the compressive strength of cement - sodium silicate - stabilized soil decreases, while increases as the bulk weight and compressibility modulus
通過對水泥?水玻璃加固土的無側限抗壓強度試驗,以及用不同酸堿性水製成與養護的固結土所進行強度對比試驗,得出軟土的物理力學性質指標與加固土的抗壓強度之間存在一定的相關關系,即隨著含水量、孔隙比、孔隙度、液塑限及液性指數的增加,水泥?水玻璃加固土的抗壓強度相應地降低;而隨著原狀土的容重、壓縮模量的增加,水泥土的抗壓強度也隨之增加。The experiment indicated that the technology process can acquire pricklyash seed oil whose acidity is appropriate at the level of losing, meanwhile the method can notably decrease chroma of the pricklyash seed oil
實驗室試驗表明稀溶液分步間歇式堿煉的工藝流程,可以在低煉耗的水平上得到酸值較理想的花椒籽堿煉油,同時該堿煉方法也能顯著的降低花椒籽油的色度。The optimum conditions of preparation were as fellows : the concentration of zinc sulfate solution of 1. 8 - 2. omol / l, the concentration of ammonium bicarbonate solution of 1. 4 ~ 1. 6mol / l, the time of ultrasonic radiation of 25 ~ 30min. iv. preparation of active zinc oxide by means of microwave radiation to calcine precursor of basic zinc carbonate firstly, and a mechanism on preparation of ultra - fine active zinc oxide by means of microwave radiation has been investigated emphatically as well as the effects on quality of ultra - fine active zinc oxide have been analyzed and discussed in detail, the time of microwave radiation was 7 ~ 16 min ; comparing microwave radiation calcining with conventional calcining, the calcining time of microwave radiation was one thirty to one twenty, the calcining time shortened hugely, energy consumption saved hugely, the quality of product improved
首次引入超聲波輻射制備超細活性氧化鋅前驅體堿式碳酸鋅新技術,研究了超聲波輻射制備前驅體堿式碳酸鋅的機理,並分析和討論了影響前驅體質量的各種因素,確定了最佳的前驅體制備條件為:硫酸鋅濃度為1 . 8 2 . 0mol / l ,碳酸氫銨的濃度為1 . 4 1 . 6mol / l ,超聲波輻射25 30min ; 4 、首次採用微波加熱煅燒前驅體堿式碳酸鋅制備超細活性氧化鋅的新技術,研究了微波輻射加熱煅燒前驅體制備超細活性氧化鋅的機理,並分析和討論了影響活性氧化鋅質量的各種因素,確定了最佳的超細活性氧化鋅制備條件為:微波加熱煅燒時間為7 16min ,與傳統煅燒方法相比,煅燒時間僅為傳統的1 30 1 20 ,大大縮短煅燒時間,節省能耗,提高了煅燒產品的質量; 5 、完成了從鋅浮渣中制備超細活性氧化鋅的小試試驗和擴大試驗。Standard test method for length change of concrete due to alkali - carbonate rock reaction
由於堿金屬碳酸鹽礦石反應引起混凝土長度變化的標準試驗方法Methods of sampling and test for glycerol - determination of alkalinity or acidity : volumetric method
甘油取樣與試驗方法.第5部分:酸堿度測定:容量法分享友人