主要产物
- 与 主要产物 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In technological condition at 1400℃, its main phase was synthetic hercynite.
在工艺条件下,在热处理温度为1400℃时,其产物的主要相为铁铝尖晶石
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In technological condition at 1300℃, its main phase was synthetic hercynite.
在工艺条件下,热处理温度为1300℃时,其产物的主要相为铁铝尖晶石。
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The kinetic behaviors of ethylene homo- olymerization and ethylene / l-hexene co-polymerization , catalyzed by the metallocene catalyst PS-DVB-MC in an 0.5 L stainless steel reactor , were studied. The effects of polymerization conditions on ethylene polymerization , such as concentration of catalyst , temperature of polymerization , pressure of ethylene , molar ratio of AI / Z r , etc ., were also investigated . Some leading results were as follows : the activity of the catalyst PS–DVB- MC for ethylene homo-polymerization was high ( 1.053 x 107 gPE / mol Zr·h ), but the molar ratio of AI / Zr was low ( 350:1 ); the catalytic ability for ethyleneα-olefin ( such as l hexene etc .) co-olymerization was great , and the corresponding activity come up to a maximum of 1.753 x 107 gPE / mol Zr·h while concenlration of l-hexene was 0.080 mol / L ; the molecular weight of polyethylene was about 180,000 , meanwhile the molecular weight distribution was narrow ( 2.19 ); the bulk density of polyethylene and ethylene / l-hexene co -polymer were 0.25 and 0.34 respectively .
采用0.5L高压不锈钢反应釜,对催化剂PS–DVB-MC催化乙烯均聚和乙烯/ l-己烯共聚合的动力学行为进行了研究,详细考察了催化剂浓度、反应温度、压力、Al/ Zr比、1-己烯浓度等因素对乙烯聚合反应的影响,得到如下主要结论:催化剂PS-DVB-MC具有催化乙烯均聚的高活性(1.053×107g PE / mo1 zr.hr),低Al / Zr比( 350:1 );具有良好的催化乙烯与α-烯烃(如1-己烯等)共聚的能力,在1-己烯浓度为0.080 mol / L时,催化活性达到最大(1.783×107 g PE / molZr.hr);乙烯均聚产物的分子量在18万左右,分子量分布窄( 2.19 )。
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MAIN OUTCOME MEASURES: The contents of monoamine neurotranmitters of norepinephrine, adrenalin, dopamine and 5-serotonin (5-HA) and its metabolites of DHPR, 5-hydroxyindoleacetic acid (5-HIAA) and homovanillic acid in the striatum and marginal area of brain in rats were observed.
主要观察指标:大鼠纹状体和脑边缘区单胺类递质去甲肾上腺素、肾上腺素、多巴胺和5-羟色胺及其代谢产物3,4-二羟苯乙二醇、5-羟吲哚乙酸、高香草酸的含量。
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Immunohistochemistry technology was used to evaluated tyrosine hydroxylase of DA synthesis. DA, 5-hydroxytryptophan(5-HT) and their respective metabolic products 3,4 -dihydroxyphenylacetic, homovanillic are also precisely quantified in this research by using high-pressure liquid chromatography with electrochemical detector. The main metabolism monoamine oxidase of DA was processed too. RESULTS:WD can increase the synthesis and the metabolism process of DA .
本文观察了温胆汤及其配伍对大鼠刻板行为的影响,采用了免疫组化技术对多巴胺的合成酶—酪氨酸羟化酶进行了含量测定,应用高效液相-电化学法测定了DA、5-羟色胺(5-HT)及代谢产物3,4—二羟基苯乙酸、高香草酸的含量,并测定了DA主要降解酶—单胺氧化酶。
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ABSTRACT This thesis focused on the studies of setereoselectively total synthesis of naturally occurring bisabolane sesquiterpenes and hydroxamic acid derivatives; it contains the following five parts: Part Ⅰ: Hydroformylation reaction have been taken an overview for past 40 years.
本论文主要对防风根烯类倍半萜天然产物和羟肟酸类化合物的全合成进行了研究,内容概要如下:一、对近年来氢甲酰化反应——特别是不对称氢甲酰化反应作了详尽的综述。
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Results Inbreathe and dermal exposure to THMs in reclaimed water were the main ways of exposure for occupational worker and general populations in road clearing and public garden virescence in Beijing.
结果 再生水中氯仿、一溴二氯甲烷、二溴一氯甲烷、三溴甲烷的浓度分别为0.875~108、0.06~11.0、未检出~5.82、未检出~3.04μg/L。再生水回用于道路压尘、公园绿化,人群通过吸人和皮肤两种途径暴露于再生水,吸人暴露为主要途径,其消毒副产物THMS中。
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The results indicate that the different thermal expansions and elastoplastic properties and distributed randomness of various mineral particles composed of oil shale will lead to the nonuniformity of thermal field , deformation field and stress field in heating process , which makes the particles of oil shale deform incompatibly : and the release of product pyrolysis results in irreversible damages of oil shale material and structure . These are the main reasons for the thermal fracture of oil shale .
研究结果表明:组成油页岩各种矿物颗粒热膨胀和弹塑性性质的不同及其分布的随机性,导致油页岩加热过程中温度场,变形场和应力场的非均匀性,使得油页岩颗粒间变形不协调和油页岩热解产物释放引起油页岩材料与结构性能发生不可逆的劣化损伤,这是油页岩发生热破裂的主要原因;热传导方式加热油页岩,温度的传递比较缓慢,加热井和生产井的间距不宜过大,对油页岩储层性质存在差异时,注热井应选择较高热导率的区段;油页岩的层理对油页岩地下原位开发形成渗透带至关重要,油页岩达到热解温度会产生附加的膨胀力,首先在层理处开裂,应充分利用油页岩层理赋存条件改造其渗透性。
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The results indicate that the different thermal expansions and elastoplastic properties and distributed randomness of various mineral particles composed of oil shale will lead to the nonuniformity of thermal field, deformation field and stress field in heating process, which makes the particles of oil shale deform incompatibly: and the release of product pyrolysis results in irreversible damages of oil shale material and structure. These are the main reasons for the thermal fracture of oil shale. When oil shale is heated through thermal conduction, temperature transfers slowly, so the spacing between heating well and production well should not be kept too long. When difference exists in oil shale reservoir's properties, heating well should be chosen in the high conductivity region. Oil shale's stratification is vital for developing permeation zone in in-situ retorting. Oil shale will generate additional expansion force as it reaches its pyrolysis temperature, and stratification will be cracked first, so the oil shale stratification should be utilized to enhance its permeability.
研究结果表明:组成油页岩各种矿物颗粒热膨胀和弹塑性性质的不同及其分布的随机性,导致油页岩加热过程中温度场、变形场和应力场的非均匀性,使得油页岩颗粒间变形不协调和油页岩热解产物释放引起油页岩材料与结构性能发生不可逆的劣化损伤,这是油页岩发生热破裂的主要原因;热传导方式加热油页岩,温度的传递比较缓慢,加热井和生产井的间距不宜过大,对油页岩储层性质存在差异时,注热井应选择较高热导率的区段;油页岩的层理对油页岩地下原位开发形成渗透带至关重要,油页岩达到热解温度会产生附加的膨胀力,首先在层理处开裂,应充分利用油页岩层理赋存条件改造其渗透性。
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The results of thin layer chromatography of the products from starch catalyzed by the neoamylase demonstrate that the neoamylase call be used to catalyze starch to produce isomaltooligosaccharide, including isomaltose, panose, isomaltotriose, from starch.
薄层层析证明,CW2M3分泌的新型淀粉酶能有效地催化淀粉降解产生异麦芽低聚糖,产物主要包括异麦芽糖、潘糖、异麦芽三糖等。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力