The conventional method of preparing fine cemented carbide is to reduce and carburize fine W and WC powder at low temperature, then inhibitors,such as TaC, Cr3C2 and VC, are usually added into the powder to prevent the WC grains from coarsening during sintering.

制取這種微晶硬質(zhì)合金通常的方法是欧美国产亚洲日本韩国VA，用還原和碳化方法，首先得到細(xì)W粉和WC粉，然后加入TaC、Cr3C2和VC等晶粒長大抑制劑91华人精品自拍，并且通常是將這些抑制劑加入到W粉或WC粉中，防止WC晶粒在燒結(jié)時長大變大變粗黄网页在线。

In the paper, some factors influencing the effect of reduction including the anodic material, the cathodal material, the area ratio of cathode to anode and the kind of electrolyte have been investigated and screened out. The result showed that under the same reduction conditions, the reduction of Cr6+ has better effect to use lead-antimony alloy as anode, iron plate as cathode, which area ratio is 7:1 and potassium sulphate as electrolyte.

本文首先對影響電解還原效果的陽極材料又粗又长又硬的裸交视频、陰極材料、陰陽極面積比和支持電解質(zhì)加入的種類等因素進行了研究篩選，結(jié)果表明：在同樣電解還原條件下18岁黄网，實驗中陽極采用鉛-銻合金欧美性爱视频在线观看精品，陰極采用鐵板，陰陽極面積比取7∶191精品国产免费，支持電解質(zhì)取為硫酸鉀時黑人三级片免费看，具有較好的Cr~(6+)還原效果黄片免费观看无码；同時在采用鉛-銻合金作陽極的條件下最新最近亚洲中文字幕，通過正交實驗，對影響直接在堿性介質(zhì)中電解還原低濃度含鉻廢水的其他因素進行了研究国产一级AA片免费视频，即研究了在電化學(xué)還原過程中精品毛片二区，Cr~(6+)的初始濃度、極板間距韩国免费A片吃奶玩乳视频、支持電解質(zhì)的加入量99热W亚洲精品国产99、攪拌情況等因素對還原效果的影響程度，確定出了主要的影響因素亚洲欧美一区二区欧美亚洲A。

Methods TASMCs were stimulated with LPS in the presence or absence of CCK-8 and/or PKC inhibitor chelerythrine, morphine,-OR mRNA expression was analyzed by RT-PCR 16h after stimulation.

培養(yǎng)大鼠TASMCs美女视频在线观看永久免费，在加入或不加入CCK-8和/或CHE、嗎啡的情況下精品欧美日韩一区二区麻豆91，用LPS刺激細(xì)胞16h欧美一级aa黄片系列精品99，用半定量RT-PCR檢測κ阿片受體mRNA的表達。

A chemical coagulatory coprecipitation method was used in the treatment of blast-furnace gas washing water.

用化學(xué)混凝共沉淀的方法處理高爐煤氣洗滌水色哟脚在线观看视频，實驗確定了最佳的藥劑為聚合氯化鋁鈣色综合色狠狠天天综合大色，工藝的最佳操作條件是聚合氯化鋁鈣加入量為33mg/L，PAM加入量為0网友自拍偷拍一区。

A chemical coagulatory coprecipitation method was used in the treatment of blast-furnace gas washing water.

用化學(xué)混凝共沉淀的方法處理高爐煤氣洗滌水乱辈通奷免费视频，實驗確定了最佳的藥劑為聚合氯化鋁鈣，工藝的最佳操作條件是聚合氯化鋁鈣加入量為33mg/L精品国产AV片儿，PAM加入量為0.5mg/L啊进来插视频，攪拌時間為60s，攪拌強度為90r/min黄网站进入。

The removal of these impurities by three kinds of active carbon(coaly activated carbon,fruit hull activated carbon,woodiness activated carbon) are studied under different experimental conditions.The results show that the fruit hull active carbon is not suitable for the removal of the impurity in bittern of salt lake because its removing rate of COD and turbidity is ...

以去除鹽湖鹵水中COD和濁度為目的中国黄色AV网站，選用煤質(zhì)活性炭、果殼活性炭影音先锋最新AV网站、木質(zhì)活性炭3種不同活性炭進行凈化除雜的工藝研究女生张开大腿让男生桶，結(jié)果表明：果殼活性炭對COD和濁度的去除率最低，加入量最大无码一级淫片免费观看，不宜選用18禁网站网址；木質(zhì)活性炭在低溫下(≤20℃)脫除COD效果較好，在常溫下(28~45℃)去除COD和濁度的效率明顯低于煤質(zhì)活性炭；在震蕩速度97超碰资源总站、吸附時間及吸附劑加入量均相同的情況下色拍拍网，煤質(zhì)活性炭脫色除雜效果明顯優(yōu)于其余兩種活性炭，在鹽湖鹵水的脫色凈化工程中應(yīng)優(yōu)先選用色哟哟官方网站入口。

In joins in the cobaltous acetate resultant besides nano-carbonball, has tubular of matter the minority head harness metal. Adds response the formic acid nickel to be possible to obtain the particle size comparatively greatly to have the carbon-encapsulated. The Co3B obtained resultant shape not to be more irregular also to have the carbon-encapsulated.

當(dāng)加入醋酸鈷反應(yīng)時一级一片免费观看，產(chǎn)物中除奈米碳球外，還具有少數(shù)頭戴金屬鈷之管狀物質(zhì)熟女强奸乱伦电影；而加甲酸鎳時欧美十日韩十国产，則可得到較大粒徑具有包覆現(xiàn)象之奈米碳球；然而加入硼化鈷所得反應(yīng)產(chǎn)物形狀較不規(guī)則且具有包覆之奈米顆粒1级黄色免费片。

Methods 120 patients,who suffer from CHB,were divided into two groups randomly. The treatment group (60 cases) were given compound diisopropylamine dichloroacetate (80 mg/day) combined with salviae miltiorrhizae composita (20 mL/day), and control group (60 cases) were only given compound diisopropylamine dichloroacetate (80mg/day).

將120 例慢性乙型肝炎患者治療組60 例99这里只有精品首页，給予甘樂注射液80 mg加入5%葡萄糖注射液250 mL中靜脈滴注，丹參注射液20 mL 加入5%葡萄糖注射液250 mL 靜脈滴注性直播在线看黄网站，均1次/d青草视频在线播放精品无码；對照組60 例，給予甘樂注射液在线观看国产，劑量91人妻教师超碰、療法同治療組，兩組藥物在治療20 天后改為口服国产拍在线视频，療程均為6 月1024手机看片你懂的无毒不卡。

Dealcoholization temperature markedly influences the surface area and porosity of the resultant MAO-supports. When the support was pretreated at lower or higher temperature, the corresponding MAO-support shows very low surface area;2.XRD and IR analyses indicate that MAO has reacted with the residual ethanol in the supports, which is an important manner to get MAO fixed on the carrier. Morever, XPS analyse indicates that MAO can also be coordinated with MgCl_2, which is another way to get MAO fixed on the support;3.ICP and EDX analyses indicate that dealcoholization temperature not only determined the element content on the solid catalyst, but also influences the element distribution on the carrier;4.The activities of the supported phenoxy-imine catalysts and the properties of resultant polymers are strongly dependent on the dealcoholization temperature. The support (MSP-5) obtained by treating MgCl_2·2.56C_2H_5OH at 160℃for 4 h, then modified by MAO is very effective for immobilizing complex 3, the resultant solid catalyst (MSPC-5) shows very high activity in ethylene polymerization, and its kinetics of polymerization is stable during the reaction process. Finally, PEs with spherical morphology and high bulk density (over 0.35g/ml) were obtained, without reactor fouling;5.In this work, polymerization conditions such as alkylaluminums, Al/Zr ratio, temperature and H_2 had a pronounced effect on the activity of MSPC-5 and properties of PE;(3). New MgCl_2-Supported Single-Site Catalysts for Ethylene PolymerizationIn this work, a kind of new MgCl_2 support was obtained by anhydrous MgCl_2 co-milled with solid MAO, and it is a creative contribution. Then some single-site catalysts were supported on the new MgCl_2 support, and the resulted solid catalysts were tested in ethylene polymerization, the results indicated that:1.XRD and IR analyses indicate that MAO does be coordinated with MgCl_2, which is in good agreement with the results obtained by XPS;2.co-mlling time had no obvious effect on the texture of support after 12 hours;3.In this work, MgCl_2 was co-milled with solid MAO for different hours, and then complex 3 was supported on these co-milled supports. It was found that co-milling time markedly influences the activity of solid catalysts, but it had negligible effect on the kinetic profile and the properties of resultant PE.

XPS研究結(jié)果表明，MAO不僅僅只和乙醇作用国产盗摄网站，MAO還與MgCl_2本身有一定的作用91在线视频网站首页，這是一個極為重要的發(fā)現(xiàn)；3国产视频自拍你懂的、通過ICP和EDX表征AV网站天堂网，發(fā)現(xiàn)載體的脫醇溫度直接影響著元素在固體催化劑中的含量及分布；4丁香六月激情久久、脫醇溫度極大地影響著負(fù)載苯氧基亞胺類催化劑的活性和聚合物的性能99超碰在线播放，特別是原始載體經(jīng)160℃活化4小時制備得到的固體催化劑MSPC-5的活性明顯高于其他脫醇溫度條件下制得的固體催化，并且催化劑壽命長www.免费AⅤ，表現(xiàn)出穩(wěn)定的動力學(xué)行為欧美日韩在线日韩欧美，最終獲得了高堆密度(大于0.35g／ml)的球形聚乙烯顆粒；5国产Av天堂亚洲国产A√、本文選擇MSPC-5為研究對象免费视频日韩，考察了聚合反應(yīng)參數(shù)對催化劑的活性及其聚合物的影響，研究發(fā)現(xiàn)：不同的烷基鋁對催化劑具有非常重要的影響美国黄色视频大片，特別足TIBA對MSPC-5的助催化活性最高国产丰满熟女视频，烷基鋁的加入量有一個較佳值，聚合溫度為80度時活性最高，H_2的加入使催化劑的活性明顯降低且聚合物的分子量也減泄胰寺拙芬磺色悠久久久综合网；、新型氯化鎂載體負(fù)載單活性中心催化劑催化乙烯聚合本文創(chuàng)造性采用固體MAO與無水氯化鎂直接進行共研磨影音先锋777xfplay色资源网站，制備出了一種的新型的氯化鎂載體免费人妻98，并將該載體用于多種單活性中心催化劑的負(fù)載化研究，研究表明：1淫淫黄色一片、通過BET欧美高清国产在线有码、XRD的表征，再次證實了MAO與MgCl_2之間具有直接作用亚洲一区无码精品网站性色，與XPS的研究結(jié)果相一致亚洲欧洲久久精品久久；2、當(dāng)研磨時間高于12小時時国产中的精品视频，延長研磨時間對載體的結(jié)構(gòu)沒有顯著的影響；3一级大黄色电影、將配合物3負(fù)載于共研磨時間不同的一系列載體上日韩综合在线七区，乙烯聚合結(jié)果表明，盡管共研磨時間對負(fù)載催化劑的活性具有明顯的影響欧美一级A片视频，但是它對聚合物的性能以及催化劑的影響不明顯激情黄色视频在线观看。

Dealcoholization temperature markedly influences the surface area and porosity of the resultant MAO-supports. When the support was pretreated at lower or higher temperature, the corresponding MAO-support shows very low surface area; 2.XRD and IR analyses indicate that MAO has reacted with the residual ethanol in the supports, which is an important manner to get MAO fixed on the carrier. Morever, XPS analyse indicates that MAO can also be coordinated with MgCl_2, which is another way to get MAO fixed on the support; 3.ICP and EDX analyses indicate that dealcoholization temperature not only determined the element content on the solid catalyst, but also influences the element distribution on the carrier; 4.The activities of the supported phenoxy-imine catalysts and the properties of resultant polymers are strongly dependent on the dealcoholization temperature. The support (MSP-5) obtained by treating MgCl_2·2.56C_2H_5OH at 160℃for 4 h, then modified by MAO is very effective for immobilizing complex 3, the resultant solid catalyst (MSPC-5) shows very high activity in ethylene polymerization, and its kinetics of polymerization is stable during the reaction process. Finally, PEs with spherical morphology and high bulk density (over 0.35g/ml) were obtained, without reactor fouling; 5.In this work, polymerization conditions such as alkylaluminums, Al/Zr ratio, temperature and H_2 had a pronounced effect on the activity of MSPC-5 and properties of PE;(3). New MgCl_2-Supported Single-Site Catalysts for Ethylene Polymerization In this work, a kind of new MgCl_2 support was obtained by anhydrous MgCl_2 co-milled with solid MAO, and it is a creative contribution. Then some single-site catalysts were supported on the new MgCl_2 support, and the resulted solid catalysts were tested in ethylene polymerization, the results indicated that: 1.XRD and IR analyses indicate that MAO does be coordinated with MgCl_2, which is in good agreement with the results obtained by XPS; 2.co-mlling time had no obvious effect on the texture of support after 12 hours; 3.In this work, MgCl_2 was co-milled with solid MAO for different hours, and then complex 3 was supported on these co-milled supports. It was found that co-milling time markedly influences the activity of solid catalysts, but it had negligible effect on the kinetic profile and the properties of resultant PE.

XPS研究結(jié)果表明，MAO不僅僅只和乙醇作用91精品啪在线观看国产蜜臀，MAO還與MgCl_2本身有一定的作用中文字幕日韩精品人妻在线视频，這是一個極為重要的發(fā)現(xiàn)； 318禁又污又黄又爽的网站日本、通過ICP和EDX表征日韩在线专区，發(fā)現(xiàn)載體的脫醇溫度直接影響著元素在固體催化劑中的含量及分布； 4少妇按摩一区二区三区、脫醇溫度極大地影響著負(fù)載苯氧基亞胺類催化劑的活性和聚合物的性能国产熟视频在线，特別是原始載體經(jīng)160℃活化4小時制備得到的固體催化劑MSPC-5的活性明顯高于其他脫醇溫度條件下制得的固體催化，并且催化劑壽命長欧美的一级片，表現(xiàn)出穩(wěn)定的動力學(xué)行為美女自慰黄色大片，最終獲得了高堆密度(大于0.35g／ml)的球形聚乙烯顆粒； 5国产精品一级二级、本文選擇MSPC-5為研究對象少妇被黑人4p到惨叫欧美人，考察了聚合反應(yīng)參數(shù)對催化劑的活性及其聚合物的影響，研究發(fā)現(xiàn)：不同的烷基鋁對催化劑具有非常重要的影響色色色色色综合视频，特別足TIBA對MSPC-5的助催化活性最高5566在线视频，烷基鋁的加入量有一個較佳值，聚合溫度為80度時活性最高，H_2的加入使催化劑的活性明顯降低且聚合物的分子量也減信访滥心凶靼瓽ayWWW∫挂购莺萸嗖菀寥酥形淖帜唬弧⑿滦吐然V載體負(fù)載單活性中心催化劑催化乙烯聚合本文創(chuàng)造性采用固體MAO與無水氯化鎂直接進行共研磨黄片一区二区三级，制備出了一種的新型的氯化鎂載體飘花电影院午夜伦天堂，并將該載體用于多種單活性中心催化劑的負(fù)載化研究，研究表明： 191偷拍露脸老熟女合集、通過BET又爽又色网站、XRD的表征，再次證實了MAO與MgCl_2之間具有直接作用欧美在线高清，與XPS的研究結(jié)果相一致激情另类无码； 2、當(dāng)研磨時間高于12小時時欧美中文字幕一区二区三区网站，延長研磨時間對載體的結(jié)構(gòu)沒有顯著的影響免费福利视频黄色网站； 3、將配合物3負(fù)載于共研磨時間不同的一系列載體上国产aaaaaaaa一级，乙烯聚合結(jié)果表明1024在线看片你懂的，盡管共研磨時間對負(fù)載催化劑的活性具有明顯的影響，但是它對聚合物的性能以及催化劑的影響不明顯免费观看视频精品免费观看。