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3-Pentanone相关的网络例句

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During the manufacturing of the critical intermediate cephalosporin nucleus --7-amino-3-chloro-cephalosporanic acid diphenylmethyl ester hydrochloride salt, first the feasibility of the one-pot synthetic route of open loop, closed loop and ozonization when chlorine is passed over is qualified by experiments. Then the critical factors that will influence this reaction are studied as follows: the mol ratio of triphenyl phosphite and Diphenylmethyl 3-hydroxy-7-phenylacetaminoceph-3-em-4-carboxylate-l-oxide is four to one; the quantity of the stablizer should be at least more than two to one. The temperature of the system must be 25℃ when chlorine is passed over so that the hydrochloride can be precipitated to obtain cephalosporin nucleus of cefaclor--7-amino-3-chloro-cephalosporanic acid diphenylmethyl ester hydrochloride salt.

在制备关键中间体头孢母核7-氨基-3-氯头孢烷酸二苯甲酯盐酸盐时,先通过实验验证把开环、闭环、臭氧化三步在通入氯气时并为一锅煮的合成路线的可行性之外,又研究了影响该反应的几个重要因素:亚磷酸三苯酯与3-羟基-7-头孢烷-5-亚砜-2-甲酸二苯甲酯的摩尔比为4:1;稳定剂2-甲基-2-丁烯的用量至少大于2:1,通入氯化氢气体时体系温度在25℃时盐酸盐则能够顺利析出,获得头孢克洛的头孢母核—7-氨基-3-氯头孢烷酸二苯甲酯盐酸盐。

In order to find active pesticide leading compounds, thinking about that triazolothiadiazoles had various biological activities, this paper designed and synthesized 11 novel title compounds from 3-substituted-4-amino-5-mercapto-1,2,4-triazoles with heterocyclic carboxylic acid via cyclization in the presence of phosphoryl chloride by the princple of combination of active strucural moieties. The structures of the title compounds were characterized by melting point, IR, 1HNMR and elemental analysis.

为了寻找高活性农药先导化合物,考虑到三唑并噻二唑衍生物具有广泛的生物活性,本文利用活性亚结构拼接原理,将活性基团分别引入1,2,4-均三唑并[3,4-b]-1,3,4-噻二唑杂环的3位和6位,合成了未见文献报道的3,6-二取代均三唑并[3,4-b]-1,3,4-噻二唑类化合物11个,并用IR、1HNMR及元素分析测试技术对其进行了结构表征。

Anyone who vary the price in your millions of the most expensive to over 10,000 yen. March 3 girls section called Taohuajie, reportedly Nara era spread from China to Japan. March 3 days this family reunion to celebrate the healthy growth of girls, and then pick up the story of people awaiting held following the release in March of next year.

偶人的价格参差不一,贵的上百万,最便宜的也要1万多日元。3月3日女孩节又叫桃花节,据说是奈良时代从中国流传到日本的。3月3日这一天一家人团聚,共同庆祝女孩健康成长,然后把偶人收拾起来,等待明年3月份再拿出来。

We also get another expression of Steinberg's conjecture about plane graphs, that is, every plane graph without i(4≤i≤5) faces in which any two triangles have distance at least 3 and no 3-face is adjacent to any 6-faces is 3-colorable.

我们还得到平面图的一个类似结论:没有4、5面的平面图中如果任意两个3圈的距离至少为3,而且没有3面和6面相邻,那么这个图也是可以3色的。

We also get another expression of Steinbergs conjecture about plane graphs, that is, every plane graph without i(4≤i≤5) faces in which any two triangles have distance at least 3 and no 3-face is adjacent to any 6-faces is 3-colorable.

我们还得到平面图的一个类似结论:没有4、5面的平面图中如果任意两个3圈的距离至少为3,而且没有3面和6面相邻,那么这个图也是可以3色的。

Other Psionic and Magic Gear: Dorje of firefall (2nd), boots of stomping (3rd), crystal capacitor [1] (4th-8th), dorje of lesser body adjustment (4th), cloak of resistance +1 (5th-18th), dorje of ectoplasmic cocoon (6th-7th), crystal capacitor [3] (7th- 11th), dorje of invisibility [9th-level manifester] (8th), crystal mask of mindarmor (9th-12th), 3 powerleech pearls (10th, 18th- 20th), dorje of whitefire (10th), amulet of natural armor + 1 (11th-16th), third eye penetrate (11th), psionatrix of Psychokinesis (11th), crystal anchor (12th-14th), greater psionic restraints (12th-20th), ring of sustenance (12th), crystal capacitor [5] (13th-16th), torc of free will (13th), gloves of Dexterity +2 (14th-20th), dorje of negate psionics (14th-15th, 18th), ring of fire resistance (16th), amulet of natural armor +2 (17th-20th), damping psionic restraints (17th), crystal capacitor [7] (17th-18th), amulet of natural armor +3 (19th-20th), skin of the spider (19th-20th), crystal capacitor [9] (19th), third eye negate (20th).

其他灵能和魔法装备:"落炎术"灵杖(2级),重踏靴(3级),灵容[1](4至8级),"次级身体调节"灵杖(4级),+1抗力斗篷(5至18级),"星质茧"灵杖(6至7级),灵容[3](7至11级),"隐形术"灵杖[显能者等级9](8级),水晶心防面具(9至12级),夺能珍珠×3(10级、18至20级),"苍火"灵杖(10级),+1天生防御护符(11至16级),穿透镶额眼(11级),心灵转化灵锥(11级),"魅惑人类"晶锚(12至14 级),高级灵铐(12至20级),维生戒指(12级),灵容[5](13至16级),自由意志项圈(13级),+2敏捷手套(14至20级),"消解灵能"灵杖(14至15级、18级),次级抗火戒指(16级),+2天生防御护符(17至20 级),阻尼灵铐(17级),灵容[7](17至18级),+3天生防御护符(19至20级),蜘蛛灵皮(19至20级),灵容 [9](19级),消能镶额眼(20级)。

This reporter has learned that March 23 flight from Shanghai to Xiamen, the price of 3 packs 290, Day 20 Shanghai to Sanya Price for 4 packs of 760 yuan, the Shanghai-Kunming route March 23 Price for 5 packs of 530, 3 month on the 19th route from Shanghai to Zhangjiajie Price for 4 packs 530, flights from Shanghai to Chengdu on March 23 for the 4 pack Price 640 yuan, while in the previous February, February 11 from Shanghai to Chengdu, the price of 5 discount at 810 yuan Shanghai to Zhangjiajie February 13 at the price of about 6 packs, air routes from Shanghai to Xiamen, the price of 6 at around 580 fold.

记者了解到,3月23日上海至厦门航线的价格为3折290元,20日上海到三亚的价格为4折760元,上海至昆明航线3月23日的价格为5折530元,3月19日上海至张家界航线的价格为4折530元,上海至成都航线3月23日价格为4折640元,而在此前2月份,2月11日上海至成都的价格在5折810元,上海至张家界2月13日的价格约在6折,上海至厦门航线的价格在6折580元左右。

Ovary superior, 1-loculed, or divided by 3 septa and 3-loculed, or incompletely septate; ovules 3 and inserted at base of ovary, or numerous and biseriate on 3 parietal placentas.

子房上位,1室,或者被隔膜分开为3室,或者不完全具隔;胚珠3枚,着生在子房的基部,或者多数胚珠在3个侧膜胎座上排成2列。

In the first part, we will first deal with the strong Bonnesen-style inequality (2.1.3) for closed convex curves in the plane (the numbers of formulae and references are those of them in the context below). Bonnesen had first proved the weaker inequality (2.1.2) in [12] and several years later, he outlined in his monograph [13] various Bonnesen-style inequalities including (2.1.3), he considered, however,(2.1.3) as a direct consequence of Kritikos\' theorem for convex bodies in higher dimensional Euclidean spaces,.

具体地讲,在第一部分中,首先讨论平面上闭凸曲线的强Bonnesen型不等式(2.1.3)(公式的编号和参考文献的编号引自后面的正文),Bonnesen在文[12]中先证明了较弱的不等式(2.1.2),几年以后,在他的著作[13]中,讨论了多种Bonnesen型不等式,其中包括不等式(2.1.3),不过,他把(2.1.3)作为高维欧氏空间中凸体的Kritikos定理的直接推论,我们这里对不等式(2.1.3)给出独立的存在性证明,并且还对平面闭凸曲线的bi-enclosing环的宽度给出了一个估计。

The crystal belongs to triclinic, space group P-1 with α=0.775 1(2) nm, b=0.837 7(2) nm, c=1.003 7(2) nm,α=75.57(3),β=83.05(3),γ=86.08(3), D=1.296 g/cm^3, Z=2, F(000)=256,μ=0.095 mm^(-1), and the final deviation factor R=0.0545 and wR=0.146 0. X-ray analysis reveals that molecules are linked by intermolecular O-H…O hydrogen bonds formed between the adjacent molecules.

具体测定结果如下:该晶体属于三料晶系,P-1空间群,α=0.7751 (2) nm, b=0.8377 (2) nm, c=1.0037 (2) nm,α=75.57 (3),β=83.05 (3),γ=86.08 (3), D=1.296 g/立方公分,Z=2, F(000)=256,μ=0.095 mm^(-1),最终偏差因子分别为R=0.0545,wR=0.1460.X-射线衍射分析表明,分子之间通过相邻分子间形成的O-H…O氢键相连。

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推荐网络例句

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢?

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我,一个心中布满虚荣的女孩子真实的想法。

Oh, and I bought myself a new laptop," he said."

哦,我还给我自己买了一个新笔记本"他说。"