The optimal conditions were found as follows: reaction temperature 90℃, reaction time 50 min, the molar ratio of catalyst to diethyl adipate 1.1:1, providing 99.5% yield.

結(jié)果表明激情亚洲欧美另类录音，各試驗(yàn)因素的影響效能為反應(yīng)溫度（反應(yīng)時(shí)間（催化劑用量国产A级理论片无码免费；最佳合成條件為反應(yīng)溫度90℃日韩无码黄片，反應(yīng)時(shí)間50 min一级A片刺激高潮视频在线观看，催化劑與原料的摩爾比為1.1：1二色aⅴ国产热，在此條件下av激情网站，常壓合成目標(biāo)物的產(chǎn)率可以達(dá)到99.5%。

If for any uv∈E, C_u≠C_v, then we callσis a k-adjacent vertex distinguishing incidence coloring of G andχ_=min{k| there exists a k- adjacent vertex distinguishing incidence coloring of G} is the adjacent vertex distinguishing incidence chromatic number of G.

若對(duì)任意uv∈E滿足C_u≠C_v免费一级A片视频播放欧美，則稱σ為G的k-鄰點(diǎn)可區(qū)別關(guān)聯(lián)著色9啪在线，并稱X_=min{k|存在G的k-鄰點(diǎn)可區(qū)別關(guān)聯(lián)著色}為G的鄰點(diǎn)可區(qū)別關(guān)聯(lián)色數(shù)。

The invasion of drilling fluid is the main cause to the damage of fractured formation. The composite salt free-gel drilling fluid is got after analyzing the influence of different kinds of such soluble adulterant as organic salt and non organic salt on the performance of the solid-free drilling fluid and studying the condition to develop the free gel structure and the method to improve the fluid's high temperature stability and inhibitive property. The experiment shows that the apparent viscosity of this system is as high as 27000 mPas when the share rate is 0.3 r/min and the high temperature reaches at the stable level of 150℃ and the HTHP filtrate loss decreases to 15 ml at 150℃.

鉆井液侵入是裂縫性儲(chǔ)層損害的主要因素之一在线性国日韩，實(shí)驗(yàn)分析了無機(jī)鹽啪啪啪黄色网站、有機(jī)鹽等不同類型水溶性加重劑對(duì)無固相鉆井液性能的影響二级黄色网站免费在线，研究了無固相鉆井液快速弱凝膠特性形成條件以及高溫穩(wěn)定性和抑制能力的提高方法，研制出的無固相復(fù)合鹽弱凝膠功能性鉆井液高溫穩(wěn)定性達(dá)到150℃欧美草草影院视频，具有獨(dú)特的流變性（0.3r/min黏度達(dá)到27000 mPas）和優(yōu)良的抑制能力（150℃HTHP濾失量小于15 mL）αv中文字幕在线毛片免费，成本遠(yuǎn)低于甲酸鹽鉆井完井液。

I think of the site as a combination of professionalism and amateurism, Mr Min said

Mr Min認(rèn)為OhmyNews的網(wǎng)站是專業(yè)與業(yè)余的結(jié)合超碰在线观看播放，并分析它會(huì)如此受歡迎的

The K m and V max values of the amidase for acrylamide were 2.64 mmol·L-1 and 0.6 μmol·min-1·ml-1, respectively.

以丙烯酰胺為底物時(shí)婷婷久久高清国外AV免费，該酶的 K m和 V max值分別為2.64 mmol·L-1和0.6 μmol·min-1·ml-1。

Resultsthe best blanching time of cleaned angeleno was 4 min with 0.06 % vitamin c to stabilize color before extraction; the optimum parameters of enzyme treatment was as follows: dealing angeleno with 0.10 % pectinase at ph 4.0 and 50℃ for 4 h.

結(jié)果確定最佳熱燙時(shí)間為4 min欧日韩精品明星图片在线观看、維生素c添加量0.06 %亚洲56页；最佳酶處理?xiàng)l件：酶用量0.10 %，酶作用時(shí)間4 h影音先锋不鲁321资源网，50 ℃射一射人人操一操，ph4.0；加2倍水榨汁午夜精品高清一级，出汁率80.3 %九九九热久热精品视频频。

During the experiment, the circular grating with 1200 grating lines was adopted, and the precision of the twist angle (less than 0.001°) was acquired while the rotational speed of the principal axis is within the range of 0～1500r/min.

實(shí)驗(yàn)中，測(cè)量系統(tǒng)采用1200條刻線的圓光柵葡京亚洲影院在线观看，在主軸轉(zhuǎn)速為0～1500r/min的范圍內(nèi)測(cè)量其扭矩国语自产免费精品视频在，扭轉(zhuǎn)角精度小于0.001°。

The results showed that:①The optimum fermentation conditions of Monascus anka 5040 were 170 r/min table rotational speed, 32℃ temperature, pH5.4 and 90 mL/L load.

結(jié)果表明：①紅曲霉菌5040發(fā)酵的最佳工藝條件為搖床轉(zhuǎn)速170r/min草草视频在线观看网址，溫度32℃亚洲黄色站，pH 5.4，接種量90 mL/L黄片黄片黄片。

Under the conditions of stir speeds 400 r·min~(-1) and distance between anode and cathode 1 mm, by using the orthogonal design, the optimum technological conditions were found that the current density was 0.3 A·cm~(-2), initial NaOH concentration in catholyte was 50 g·L~(-1), reaction times of two steps were all theoretical electrochemical reaction times. In the first electrosynthesis, initial Na_2CrO_4 concentration in anolyte was 650 g·L~(-1), and reaction temperature was 80℃. In the second electrosynthesis, initial Na_2Cr_2O_7 concentration in anolyte was 700 g·L~(-1), and reaction temperature was 85℃.

324全氟磺酸增強(qiáng)復(fù)合陽(yáng)離子交換膜亚洲女人天堂网、陰陽(yáng)極液中攪拌速度均為400r·min~(-1)條件下，通過正交實(shí)驗(yàn)得到優(yōu)化工藝條件為：電流密度0.3A·cm~(-2)谁有黄色网站视频看，陰極液氫氧化鈉初始濃度50g·L~(-1)国产A片视频，兩步反應(yīng)時(shí)間均為理論電催化反應(yīng)時(shí)間，第一步陽(yáng)極液鉻酸鈉初始濃度650g·L~(-1)户外露出网站，反應(yīng)溫度80℃欧美一级婬片A片免天堂，第二步陽(yáng)極液重鉻酸鈉初始濃度700g·L~(-1)，反應(yīng)溫度85℃亚洲巨制av剧情在线。

The ultrasonic-assisted solvent extraction and quantitative analysis of the oxine-copper residues in soil with ion pair of antiphase HPLC was established. This methods mainly uses XBridge C5 column and UV detector by using waters phase of phosphatic buffered solution/acetonitrile (60:40, by vol) as mobile phase with 0.8 mL/min flow ratio and UV detection at 245 nm. The residue time was 4.72 minute. The linear correlation of this method was 0.9987. The recovery rate was 76.2 to 108.7%. Comparatively standard deviation was 0.6 to 3.37%. The detection limits of method was 0.05 mg/kg.

建立了土壤中喹啉銅的超聲波輔助溶劑提确崧娜似抟患睹形摹－反相離子對(duì)高效液相色譜法的殘留分析方法，該方法使用XBridge C18色譜柱和可變波長(zhǎng)紫外檢測(cè)器欧美激情性A片在线观看⑧，并以水相磷酸鹽緩沖體系－乙腈（體積比60：40）作流動(dòng)相91亚洲精品福利在线播放；流速為0.8mL/min；檢測(cè)波長(zhǎng)為245nm男人的天堂在线无码视频网站；保留時(shí)間為4.72min欧美巨；線性相關(guān)系數(shù)為0.9987日韩精品免费AⅤ片在线观看，回收率在76.2%~108.7%之間，相對(duì)標(biāo)準(zhǔn)偏差在0.6%~3.37%之間国产精品国产三级囯快看，對(duì)土壤的最低檢出限為0.05mg/kg日亚洲无码四区。