The application form of acidifier has developed from single acid to compound acids. But reasonable compound acidifier is insufficiency in theoretics to sustain, this is the weakness aspect in acidifier research. The evolution about these aspects have been summarized in this article.

酸化劑應(yīng)用形式也經(jīng)歷了由單一酸到復(fù)合酸的過程，但復(fù)合酸的合理配伍缺乏相應(yīng)的理論基礎(chǔ)谁有黄色av网站，目前關(guān)于各種酸化劑的互作關(guān)系以及酸化劑和其他添加劑間的互作效應(yīng)的研究正逐步展開全免费A级毛片免费看69，必將為酸化劑的進(jìn)一步發(fā)展提供理論支持。

Acidifier supplementation I could improve significantly average daily gain,feed conversion ratio,apparent digestibility. Acidifier supplementation II could reduce diarrhea rate. And the reason needed to be research further.

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Secondary pollution might be produced in the weak zone while conventional acidify because of halfway flowback under poor producing energy. Thief zones can obtain superfluous acidizing fluid because of the permeability contrast between layers of prominent interlamination antinomy, which can induce collapse in the thief zone and invalid acidification in the less permeable layers.

低壓油氣層常規(guī)酸化時(shí)由于地層能量低，導(dǎo)致殘酸溶液無法徹底返排而引起地層的二次污染国产免费黄色网站在线观看；層間矛盾突出的地層家庭乱伦欧美亚洲，由于滲透率差異，酸液將優(yōu)先進(jìn)入高滲地層久久黄色视并，導(dǎo)致高滲透層進(jìn)酸量多真人无遮挡猛进猛出视频，從而過度酸化引起坍塌，低滲透層則由于進(jìn)酸量少而達(dá)不到酸化的目的com超碰。

This article that focuses on the systematic and in-depth research in the current primal problem about abnormal burst pressure reservoir depress burst pressure has procured following main fruits:1 It forms the method which could obtain massive vertical static state mechanics parameters.2 In a foundation of acquisition of rock mechanics parameters,apply bent lamella that as mechanical model along with characteristic of actual geologic characteristics to analysis curvature for anticlinal strcture, get homologous tectonic stress value throug relation between the curvature and stress and different principal curvature in anticlinal structure,consequently set up laminational stress model for anticline reservoir. The block lamination for existed fracturing date has formed method of setting up mechanical model of lamination terrestrial stress by abtaining the block tectonic stress coefficients which are got by complex utilization test, laboratory test and fracturing date playback.3 Analysesing the main reason which lead to high burst pressure by considering the characteristic of reservoir geology,reservoir,and rock mechanics and reservoir damage,etc.Establishing burst pressure quantitative prediction model which provide gist for depressing construction risk and optimizing construction craft under the condition of open hole completion ,gun-perforated completion and damaged reservoir.4 Provding theoretical basis for interpreting acidification pretreatment which could depress busrt pressure by finding the relation between the influencing factors and rock machanics parameters and analysing the factors that have effect on rock mechanics parameters. Expounding the mechanism of reaction of mixed monomineral and acid from the angle of microcosmic element, evaluating quantitatively acid sensilility of different kinds of mineral effectively, and determing the first-order reaction dynamical equation of each mineral.5 Revealing rock mechanics property chage as a result of acid flooding in different condition by sandstone traumata experiment in different temperatures which combined with rock mechanics triaxial stress experiment.6 Associating damage mechanics with sandstone acidizing, established sandstone damage mechanics model in the foundation of the recognition on the rock mechanics parametric variation which is caused by acid-rock reaction in both macroscopic view and microscopic view ,also demonstrated those processes and quantitative estimated the acid busrt pressure to direct the site operation.

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For the acidified wastewater, calcium precipitation occurred mainly on the granular sludge surface; for the unacidified wastewater, accumulation occurred in the core of granular sludge, and for the unliquefied wastewater, precipitation evenly distributed within the granular sludge and on the surface.

已經(jīng)酸化的廢水，乙酸轉(zhuǎn)化為甲烷的場(chǎng)所主要在顆粒污泥的外表面18人人黄色视频在线观看；對(duì)于未酸化廢水，這種轉(zhuǎn)化發(fā)生在顆粒污泥的核心日韩特黄性爱毛片免费视频；難酸化的廢水538无码视频在线观看免费，污泥內(nèi)部存在著底物酸化的過程。

A new technique for selective plugging and acidizing oil wells is presented based on the principle of temporary plugging and acidizing in which selective plugging agent is first injected to block high permeable zones, then acid is injected to acidize low perlmeable and contaminated ones.

針對(duì)暫堵酸化技術(shù)存在的問題沈阳熟女露脸对白视频，提出了一種油井選堵酸化的新技術(shù)中文自拍日韩在线播放网站免费，即在注酸前注入選堵劑封堵高滲透水層，然后注入酸液以酸化低滲透層和污阻部位外国性交狂操视频。研制了符合最終堵水不堵油要求的選堵劑欧美激情高潮老外a一级，描述了這一新技術(shù)的機(jī)理。通過模擬試驗(yàn)黄色片黄色网站黄色片，考察了新型選堵劑的選堵效果色天堂综合、封堵強(qiáng)度及酸化轉(zhuǎn)向率等。

In this article, high DS and low viscosity carboxymethyl starch was prepared in aqueous media through the reaction between corn starch with acid treatment and etherifying agent, the effect of acid treatment time, liquor/material ratio, the amount of sodium hydroxide, the amount of monochloroacetic acid, etherification time, and reaction tempera.

以玉米淀粉為原料一级高清理论片免费大全，采用酸化-醚化復(fù)合變性的方法在水相中制備高取代度低黏度羧甲基淀粉在线免费观看黄片日，探討了酸化時(shí)間、液固比国产精品无码AA不卡视频、NaOH用量日韩美欧综合久久久久、ClCH2COOH用量、醚化反應(yīng)時(shí)間女高中生第一次破处、反應(yīng)溫度對(duì)羧甲基化過程的影響第一页国产，研究發(fā)現(xiàn)，對(duì)原淀粉進(jìn)行酸化欧美性爱手机在线，可以在不增加其它反應(yīng)試劑用量的基礎(chǔ)上提高產(chǎn)物的取代度日韩精品久久久久，但是酸化時(shí)間不應(yīng)過長黄色网站视频一区。

In this paper, firstly using natural fatty acids including lauric acid, myristic acid, palmitic acid etc. and disproportionated rosin as starting materials, the acyl reaction of starting materials with SOCl_2 respectively, and then using Schotten-Baumann condensation: on the reaction conditions of alkalescence, condensation of acylchloride with amino acid (sarcosine, glycine, alanine etc.), and then acidification, saltation. A series of anionic surfactants of N-acyl amino: sodium N-fatty acyl sarcosinate (SFS-12, SFS-14, SFS-16); sodiun N-fatty acyl glycinate(SFG-12, SFG-14, SFG-16); sodium N-fatty acyl alaninate(SFA-12, SFA-14, SFA-16)and sodium N-disproportionated rosinoyl aminatewere prepared. During the preparation of N-acylamino acid, the reaction conditions of acylchloride with amino acid condensation were identified by optimizing the synthetic conditions of N-lauroyl sarcosine: mol ratio of amino acid to acylchloride 2:1, reaction taken place in a solvent composed by acetone/water 2:1, acylchloride and 20% NaOH were slowly added to the reaction mixture at the same time while maintaining the pH at 9~10, after completion of adding maintaining reacting for 2.5h at 25℃.

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Introduce of actual acidification velocity(H~+ produced) for evaluating the acidifying effects of soil tested,only the stimulated acid rain with pH2.5 could lead to soil acidifying,however,acid rains with pH≥3.5 played a buffering role to soils tested,with the weakening of soil acidity.

引進(jìn)土壤的實(shí)際酸化速率H產(chǎn)生+值衡量供試土壤的酸化有A片网站吗?，只有pH2.5的模擬酸雨淋溶促進(jìn)了土壤的酸化在线69，而pH≥3.5的模擬酸雨處理對(duì)土壤的酸化具有一定的緩沖作用，且土壤酸度減弱成人精品视频在线日韩免费观看网址。

The classification of acidification indices about the tested the litchi orchard soil: the first class was soil intensity index of exchangeable aciditypH(KCl, exchangeable acidity, exchangeable aluminium, titratable acidity, actual acidification velocity , cation exchange capacity or electrical conductivity; the second class was soil exchangeable Ca2+, total base or base saturation percentage; The third class was soil intensity index of active aciditypH

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acidification：酸化(作用)

即在黑暗中進(jìn)行PEPC的羧化反應(yīng)和在光下進(jìn)行Rubisco的羧化反應(yīng),與此相伴隨的是由PEP羧化生成草酰乙酸并進(jìn)一步還原為蘋果酸的酸化作用(acidification)和由蘋果酸釋放CO2的脫羧作(decarboxylation).

acidifier：酸化器;酸化劑

acidifiedwater 酸化水 | acidifier 酸化器;酸化劑 | acidify 酸化

acid.acidification; acidified;acidify：酸化;酸化了的;酸化

A.Ch.S. American Chemical Society 美國化學(xué)學(xué)會(huì) | acid. acidification; acidified;acidify 酸化;酸化了的;酸化 | A.D.P. amyl decyl phthalate 酞酸戊基癸酯[增塑劑]

acidimeter; acidometer：酸度計(jì);酸化計(jì)

酸化食品;酸化食物 acidified food | 酸度計(jì);酸化計(jì) acidimeter; acidometer | 酸(度)滴定;酸量滴定 acidimetric titration; acidometric titration

acidulate：酸化;使帶酸味

acidulant 酸化劑 | acidulate 酸化;使帶酸味 | acidulated 酸化的;微酸的;帶酸味的

acidize：用酸處理, 使酸化

acidization | 酸化作用, 酸化過程 | acidize | 用酸處理, 使酸化 | acidizer | 酸處理劑, 酸化劑

acidified water：酸化水

acidifier 酸化器;酸化劑 | acidified water 酸化水 | acidify 酸化

acidified food：酸化食品;酸化食物

酸化;酸敗 acidification | 酸化食品;酸化食物 acidified food | 酸度計(jì);酸化計(jì) acidimeter; acidometer

acidified food：酸化食品

酸化,酸敗 acidification | 酸化食品 acidified food | 酸化果汁,加酸果汁 acidified juice

acidified milk：酸化乳;發(fā)酵乳;變酸乳

acidified juice 酸化果汁;加酸果汁 | acidified milk 酸化乳;發(fā)酵乳;變酸乳 | acidifier 酸化器;酸化劑;成酸劑