查询词典 burette support

Close the Whitey valve (5056), open the burette cock (5005) and put approximately 100cc's of water in the level bottle (5047), elevating the same above the burette so as to allow the water to run down into the burette to the bottom of the calibrations.

关闭白色阀门(5056)，打开滴管龙头(5005)，然后放出大约100ml的水平瓶(5047)中的水，举起滴管让水流进滴管到刻度的底部。

When making the air reading in the burette, the level bottle should be raised so as to bring the liquid in the burette and level bottle to the same level.

当得到滴管中的气体读数，水平瓶应该升高，使滴管中的液体和水平瓶中的液体在相同的水平。

It is also advisable to invert the instrument and allow the gas that was released into the burette to be absorbed in the larger bottom bulb of the burette.

颠倒仪器是允许的，使气体释放到滴管，这样使滴管的大球吸收CO2。

Raise the level bottle to fill the burette completely and close the burette cock.

防治溢出，腐蚀性汽水阀供应附件在滴管顶端。

Drops counting of capillary burette micro titration with polyethylene burette to carry on titration analysis, the apparatus is simple, small, cheap, easy to carry, and less reagent consumed, while the determination is fast and correct.

毛细滴管数滴微型滴定法以价格不足0.3元/支的聚乙烯塑料滴管为量器进行滴定分析，不仅仪器结构简单、小巧、价廉、携带方便，而且试剂用量少，测定简便、快速、准确。

PRC support commonly used file format such as HTML, Palm effective in the PDB format support BMP, ICO, GIF, JPG, PCX, TGA, CHM文件 encountered have other graphics format support PDF file format supports ZIP compressed format support document not codecs which can be read directly on the content of encrypted ZIP support document Default passwords can be erected show its support for the arbitrary change font size, type, color, arbitrarily change the background color waterline support multiple types of support, the screen was set up to support fringe character spacing.

中华人民共和国支持常用的，如HTML，Palm公司在PDB格式支持BMP，保险公司，的GIF，JPG，PCX，热重分析的有效文件格式，CHM文件遇到有其他图形格式PDF文件格式支持支持ZIP压缩格式的支持文件，可以不编解码器予以对加密文件的ZIP支持直接预设的密码内容可以设置显示其对任意更改字体大小，类型，颜色，任意更改背景颜色水线支持支持多种类型的支持，屏幕成立了支持边缘字符间距。

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研究结果表明，MAO不仅仅只和乙醇作用，MAO还与MgCl_2本身有一定的作用，这是一个极为重要的发现；3、通过ICP和EDX表征，发现载体的脱醇温度直接影响着元素在固体催化剂中的含量及分布；4、脱醇温度极大地影响着负载苯氧基亚胺类催化剂的活性和聚合物的性能，特别是原始载体经160℃活化4小时制备得到的固体催化剂MSPC-5的活性明显高于其他脱醇温度条件下制得的固体催化，并且催化剂寿命长，表现出稳定的动力学行为，最终获得了高堆密度(大于0.35g／ml)的球形聚乙烯颗粒；5、本文选择MSPC-5为研究对象，考察了聚合反应参数对催化剂的活性及其聚合物的影响，研究发现：不同的烷基铝对催化剂具有非常重要的影响，特别足TIBA对MSPC-5的助催化活性最高，烷基铝的加入量有一个较佳值，聚合温度为80度时活性最高，H_2的加入使催化剂的活性明显降低且聚合物的分子量也减小；、新型氯化镁载体负载单活性中心催化剂催化乙烯聚合本文创造性采用固体MAO与无水氯化镁直接进行共研磨，制备出了一种的新型的氯化镁载体，并将该载体用于多种单活性中心催化剂的负载化研究，研究表明：1、通过BET、XRD的表征，再次证实了MAO与MgCl_2之间具有直接作用，与XPS的研究结果相一致；2、当研磨时间高于12小时时，延长研磨时间对载体的结构没有显著的影响；3、将配合物3负载于共研磨时间不同的一系列载体上，乙烯聚合结果表明，尽管共研磨时间对负载催化剂的活性具有明显的影响，但是它对聚合物的性能以及催化剂的影响不明显。

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研究结果表明，MAO不仅仅只和乙醇作用，MAO还与MgCl_2本身有一定的作用，这是一个极为重要的发现； 3、通过ICP和EDX表征，发现载体的脱醇温度直接影响着元素在固体催化剂中的含量及分布； 4、脱醇温度极大地影响着负载苯氧基亚胺类催化剂的活性和聚合物的性能，特别是原始载体经160℃活化4小时制备得到的固体催化剂MSPC-5的活性明显高于其他脱醇温度条件下制得的固体催化，并且催化剂寿命长，表现出稳定的动力学行为，最终获得了高堆密度(大于0.35g／ml)的球形聚乙烯颗粒； 5、本文选择MSPC-5为研究对象，考察了聚合反应参数对催化剂的活性及其聚合物的影响，研究发现：不同的烷基铝对催化剂具有非常重要的影响，特别足TIBA对MSPC-5的助催化活性最高，烷基铝的加入量有一个较佳值，聚合温度为80度时活性最高，H_2的加入使催化剂的活性明显降低且聚合物的分子量也减小；、新型氯化镁载体负载单活性中心催化剂催化乙烯聚合本文创造性采用固体MAO与无水氯化镁直接进行共研磨，制备出了一种的新型的氯化镁载体，并将该载体用于多种单活性中心催化剂的负载化研究，研究表明： 1、通过BET、XRD的表征，再次证实了MAO与MgCl_2之间具有直接作用，与XPS的研究结果相一致； 2、当研磨时间高于12小时时，延长研磨时间对载体的结构没有显著的影响； 3、将配合物3负载于共研磨时间不同的一系列载体上，乙烯聚合结果表明，尽管共研磨时间对负载催化剂的活性具有明显的影响，但是它对聚合物的性能以及催化剂的影响不明显。

The company has passed the ISO9001:2000 international Quality Control System Certification. Key products of the company include ZHZ Series Hydraulic Support with Connected-Sliding-Integral Roof, ZHF Series Hydraulic Support with Connected-Sliding-Divided Roof, ZF Series Hydraulic Support Falling Roof-Coal, ZY Series Shielding Hydraulic Support, and ZJH Hydraulic Support with Sliding- Divided Roof etc., Among which, the ZHZ and ZHF series products have obtained the inventive patent and functional patent, which is a revolutionary technical breakthrough to the countering sliding support.

公司主导产品为ZHZ型系列整体顶梁组合悬移液压支架、ZHF型系列分体顶梁组合悬移液压支架、ZF型系列放顶煤支架、ZY型系列掩护式支架、ZJH型系列悬移顶梁液压支架等，其中ZHZ型和ZHF型系列组合液压支架产品是我们的发明专利与实用新型专利产品，是针对悬移类支架的一次革命性技术突破。

The key products are ZHZ Series Hydraulic Support with Connected-Sliding-Integral Roof, ZHF Series Hydraulic Support with Connected-Sliding-Divided Roof, ZF Series Hydraulic Support Falling Roof-Coal, ZY Series Shielding Hydraulic Support, and ZJH Hydraulic Support with Sliding- Divided Roof, etc. ZHZ and ZHF series products have obtained the inventive patent and functional patent, which is a revolutionary technical breakthrough to countering sliding support.

公司主导产品为ZHZ型系列整体顶梁组合悬移液压支架、ZHF型系列分体顶梁组合悬移液压支架、ZF型系列轻型放顶煤支架、ZY型系列掩护式支架、ZJH型系列悬移顶梁液压支架等，其中ZHZ型和ZHF型系列产品是我们的发明专利与实用新型专利产品，是针对悬移类支架的一次革命性技术突破。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。