查询词典 2-butene
- 与 2-butene 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The invention relates to a method for making oligomeric isocyanates by reacting diisocyanates in the presence of a catalyst, wherein the catalyst comprises a saline compound prepared from an anion selected from 1,2,3- or 1,2,4-triazole, a substituted species of 1,2,3- or 1,2,4-triazole and carbocyclically and/or heterocyclically annellated species of 1,2,3- or 1,2,4-triazole and the cation selected from an alkali metal, alkaline-earth metal and/or monovalent ammonium cation and/or phosphonium cation of formula (5), wherein the E, R1, R2, R3, R4 are as defined in the descriotion.
本发明涉及一种制备低聚异氰酸酯的方法,包括二异氰酸酯在催化剂的存在下进行反应,其中所述催化剂由盐化合物组成,该盐化合物由选自1,2,3-或1,2,4-三唑、1,2,3-或1,2,4-三唑的取代系列者、1,2,4-三唑的碳环稠合系列者、1,2,3-或1,2,4-三唑的杂环稠合系列者的化合物及其混合物的阴离子和选自碱金属、碱土金属和/或通式(5)的一价铵阳离子和/或磷友衾胱拥难衾胱又票福其中E、R 1 、R 2 、R 3 和R 4 如说明书中所定义。
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When the pH value of the solution contained in Cd~(2+) is near 5, the amount of Cd~(2+) exchange in analcime reaches to a summit; when the temperature increases, the amount of Cd~(2+) exchange in unit mass analcime also increases; when initial Cd~(2+) concentration decreases, the remove rate of Cd~(2+) increases while the amount of Cd~(2+) exchange in unit mass analcime also decreases; when other cations coexist in solution, there must be some influences to the Cd~(2+) exchange in analcime.
实验表明:当交换液的pH值为5左右时,方沸石对Cd~(2+)交换量较大:反应温度升高时,单位质量方沸石对Cd~(2+)交换量增大;随着溶液中Cd~(2+)初始浓度减小,方沸石对Cd~(2+)的去除率升高,但单位质量方沸石对Cd~(2+)的交换量逐渐减小;当溶液中有其他阳离子共存时,对方沸石与Cd~(2+)的交换也有一定的影响。
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Sum up as follows now. This group uses 1 clinical data ancon vein is pressed determine heart function of the patient 44, male 24, female 20; age 46 years old of ~79 year old, average 56 years old of; classification by function of new York heart, heart failure Ⅲ spends 6,Ⅱ spends 23,Ⅰ spends 15; right heart failure 31, complete heart failure heart disease of sex of source of 13; lung 14, hypertensive heart disease 8, coronary heart disease 5 (among them acute cardiac muscle straightens dead 2), outspread sex cardiac muscle is ill 7, rheumatism sex heart disease 4, hypertensive heart disease is amalgamative coronary heart disease 3, be short of disease of cardiac muscle of courage and uprightness 2, congenital heart disease 1. 2 detect 2.1 equipment treat the method dish 1, l measure press glass to be in charge of 1 (long 30cm, internal diameter 4mm), also can use measure a head to press a canal to replace, 10mL injector 1, 12500U heparin fluid 1. 2.2 operations patient is taken smooth lie, make be exhibited outside the upper arm show ° of 45 °~60 with trunk, and difficulty breathes like the patient in same horizontal; with right atrium, desirable lie partly, arm height is equivalent to the 2nd costal region.
现总结如下。1临床资料本组采用肘静脉压测定病人的心功能44例,男24例,女20例;年龄46岁~79岁,平均56岁;按纽约心功能分级,心力衰竭Ⅲ度6例,Ⅱ度23例,Ⅰ度15例;右心力衰竭31例,全心力衰竭13例;肺源性心脏病14例,高血压心脏病8例,冠心病5例(其中急性心肌梗死2例),扩张性心肌病7例,风湿性心脏病4例,高血压心脏病合并冠心病3例,缺血性心肌病2例,先天性心脏病1例。2检测方法2.1设备治疗盘1个,L型测压玻璃管1个(长30cm,内径4mm),也可以用测脑压管代替,10mL注射器1具,12500U肝素液1支。2.2操作病人取平卧位,使上臂外展和躯干呈45°~60°,且和右心房在同一水平面;如病人呼吸困难,可取半卧位,手臂高度相当于第2肋间。
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We cannot always have associative law for operations, for instance, we did not have this law for mixed addition and multiplication,neither for subtraction, 2+3 2+1≠(2+3)(2+1)=5 3,(2-3)- 2≠2-(3-2),this is why we have to set the rule in operations that "doing inside bracket at first and out side afterwards, doing multiplication and dividing first and addition and subtraction afterwards".
注意运算的结合律并不是永远对的,比如加法和乘法的混合运算就没有结合律,减法也没有,2+3 2+1≠5 3,(2-3)- 2≠2-(3-2),因此我们运算中总是规定先括号内再括号外,先加减后乘除。
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Ended. Going to the 3rd is that old grandma, the man thinks fast, fast, went to the 3rd now, and it is a carline, the man began, old grandma begins to counting: 1~2~3~4~, 2~2~3~4~, 3~2~3~4~, 4~2~3~4~ changes a posture, in come.
就结束了。到了第三个是那位老奶奶,男人想快了,快了,现在到了第三个了,而且是一个老太婆,男人开始了,老奶奶就开始数着:1~2~3~4~、2~2~3~4~、3~2~3~4~、4~2~3~4~换个姿势,在来一次。1~2~3~4~、2~2~3
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A better understanding of the role of PPAR in insulin action system will be critical in developing more efficacious and safe agent s that act on PPAR and benefit patients with type 2 diabetes. The main content is followed: Synthesis and analysis of 1,3-dicarbonyl compounds. Make use of easily available cheap reagent such as 2-naphthol, 6-hydroxyquinoline, 1,2-dibromoethane, 4- hydroxybenzaldehyde, dimethyl malonate, 2-{4- [(2-napthoxy)ethoxyl] benzyl} malonates and 2-{4 [(1,2,3,4-tetrahydro-6 -quinolinoxy)ethoxyl] benzyl } malonates were synthesized through 6-8 steps in virtue of Williamson, Knoevenagel reaction, Pd/C catalyzed hydrogenation with mild conditions and high yield. The total yield of 40-50%.
本论文的主要内容和研究结果如下: 1,3-二羰基类化合物的合成及分析,采用2-萘酚、6-羟基喹啉、1 ,2二溴乙烷、对羟基苯甲醛、丙二酸二甲酯等常见易得试剂,利用Williamson反应、Knoevenagel反应、钯碳加氢等条件温和且收率高的方法,分别合成了2-{4- [(2-萘氧)乙氧基]苄基}丙二酸衍生物和2-{4 [(1,2,3,4-四氢-6-喹啉氧基)乙氧基]苄基}丙二酸衍生物两个系列8个化合物,经6-8步反应,总收率为40-50%,具有一定绿色化学特性。
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They were eucalyptol, bicyclo[2.2.1]heptan-2-one,1,7,7-trimethyl-,(1R)-, borneol, 1-methyl-2-(1-methyl ethenyl)-(1R-cis)-cyclobutaneethanol, limonene, 1-hydroxymethyl-7,7-dimethy lbicyclo[2.2.1]heptan-2-one,-spathulenol, 3,7,11,15-Tetramethyl-2-hexadecen-1-ol, isocitronellol,-9-Octadecenoic acid, heneicosane, respectively.
阿给中共有11个阿给炭没有检测出的成分,包括桉油精、D-樟脑、冰片、(1R-cis)- 1-甲基-2-(1-甲基乙烯基)环丁基乙醇、二戊烯、1-羟甲基-7,7-二甲基-双环[2.2.1]庚-2-酮、-匙叶桉油烯醇、3,7,11,15-四甲基-2-十六碳烯-1-醇、异香茅醇、-9-十八碳烯酸和廿一烷。
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A synthesis method of 2-(2'-hydroxyl-4'-benzoyloxy-phenyl)-2H-benzotriazole and derivatives thereof is provided, and is characterized in that 2-(2', 4'-dihydroxyphenyl)-5-X-2H-benzotriazole and benzoyl chloride are taken as raw materials for reaction in solvent for 1-8 hours under the temperature of 50-140 DEC C with the mole ratio of 1 to 0.95-1.1, wherein, the amount of the solvent is 2 to 20 times that of the 2-(2', 4'-dihydroxyphenyl)-5-X-2H-benzotriazole and X represents H, F, Cl, Br.
一种2-(2′-羟基-4′-苯甲酸基苯基)-2H-苯并三唑及其衍生物的合成方法,其特征是,以2-(2′,4′-二羟基苯基)-5-X-2H-苯并三唑和苯甲酰氯为原料,在溶剂中进行反应,反应温度50℃~140℃,反应时间1~8小时,反应原料摩尔比2-(2′,4′-二羟基苯基)-5-X-2H-苯并三唑∶苯甲酰氯为1∶0.95~1.1,溶剂用量为2-(2′,4′-二羟基苯基)-5-X-2H-苯并三唑重量的2~20倍,其中X代表H、F、Cl、Br,具有反应条件温和、反应收率高和产物纯度高的特点。
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Merchants Tel: 0312-5972677 District Southern District 0312-5972678 company catalog is as follows: drug name specification each packing unit volume hardcover Tung Lok cream 6cm 9cm 2 paste 2 BAG box paste Tonrock 4 6cm 9cm 4 BAG musk paste cream hardcover Zhuanggu 7cm 10cm 4 paste 2 BAG box joint pain cream hardcover 7cm 10cm 4 paste 2 BAG box joint pain cream 7cm 10cm 10 BAG musk paste cream Zhuanggu 7cm 10cm 10 joint pain relief cream paste BAG 7cm 10cm 2 BAG musk paste paste Zhuanggu 7cm 10cm 2 paste BAG injury pain Qu wet plaster 5cm 6.5cm 2 BAG Guanxin paste paste 5cm 7cm 2 paste BAG
招商电话:南区0312-5972677 北区0312-5972678 公司产品目录如下:药品名称规格单位每箱包装量东乐膏精装6cm×9cm×2贴×2袋盒东乐膏4贴6cm×9cm×4贴袋麝香壮骨膏精装7cm×10cm×4贴×2袋盒关节止痛膏精装7cm×10cm×4贴×2袋盒关节止痛膏7cm×10cm×10贴袋麝香壮骨膏7cm×10cm×10贴袋关节止痛膏7cm×10cm×2贴袋麝香壮骨膏7cm×10cm×2贴袋伤湿祛痛膏5cm×6.5cm×2贴袋冠心膏5cm×7cm×2贴袋
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The results showed that Mg application considerably alleviated Mg-deficient symptom and increased magnesium nutrition on leaf of shatian pumelo; while soil in the orchard contained medium K and lack of Mg, yield and plantation income of shatian pumelo comparatively increased by 1.2% 18.7% and 0.4%~24.7% at the level of the amount of potassium oxide 340.2 kg/hm^2 applying Mg 22.5 kg/hm^2 and 45.0 kg/hm^2 while yield and plantation income of shatian pumulo comparatively increased by 11.2% 31.7% and 11.7%~39.4% at the level of the amount of potassium oxide 453.6 kg/hm^2 applying Mg 45.0 kg/hm^2, 81.0 kg/hm^2 and 117.0 kg/hm^2, and fruits quality was improved as well.
结果表明,施镁可明显减轻沙田柚叶片的缺镁症状,提高叶片镁素营养;在土壤有效钾含量中等,有效镁含量缺乏的情况下,施用钾肥(K2O) 340.2 kg/hm^2基础上配施镁肥 22.5及45.0 kg/hm^2,果实产量提高1.2%~18.7%,种植效益提高0.4%~24.7%;施用钾肥(K2O) 453.6 kg/hm^2基础上配施镁肥 45.0、81.0及117.0 kg/hm^2,果实产量提高11.2%~31.7%,种植效益提高11.7%~39.4%,同时柚果品质得到改善。
- 相关中文对照歌词
- 2 Good 2 B True
- 2+2=?
- 2 Young 2 Give A Fuck
- 2-4-2 Fox Trot (The Lear Jet Song)
- 2 Good 2 Be True
- The Robot With Human Hair Pt. 2 1/2
- 1/2 & 1/2
- Somethin' 2 Relate 2
- 1, 2, 1, 2
- Something 2 Dance 2
- 推荐网络例句
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We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.
索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称;三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起,称之为挽歌体诗人或者史诗诗人,他们被称为诗人,似乎只是因为遵守格律写作,而非他们作品的模仿本质。
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The relationship between communicative competence and grammar teaching should be that of the ends and the means.
交际能力和语法的关系应该是目标与途径的关系。
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This is not paper type of business,it's people business,with such huge money involved.
这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。