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A Little Boy How I never could be tired with roaming about that huge mansion, with its vast empty rooms, with their worn-out hangings, fluttering tapestry, and carved oaken panels, with the gilding almost rubbed out---sometimes in the spacious old-fashioned gardens, which I had almost to myself, unless when now and then a solitary gardening man would cross me---and how the nectarines and peaches hung upon the walls, without my ever offering to pluck them, because they were forbidden fruit, unless now and then,---and because I had more pleasure in strolling about among the old melancholy-looking yew-trees, or the firs, and picking up the red berries, and the fir-apples, which were good for nothing but to look at ---or in lying about upon the fresh grass, with all the fine garden smells around me---or basking in the orangery, till I could almost fancy myself ripening too along with the oranges and the limes in that grateful warmth-or in watching the dace that darted to and Fro in the fish-pond, at the bottom of the garden, with here and there a great sulky pike hanging midway down the water in silent state, as if it mocked at their impertinent friskiness,---I had more pleasure in these busy-idle diversions than in all the sweet flavors of peaches, nectarines, oranges, and such like common baits of children.

tapestry绣帷;挂毯 nectarine油桃 gilding镀金 pluck 采,摘,拔 fir-apples:树的一种圆锥形果实 dace鲦鱼 dart猛冲,飞奔 impertinent不切题的一个小男孩查尔斯·兰姆我在那所很大很大的宅院里满世界地跑,从来不知什么是疲倦:那里有许许多多又大又空的房间和破破烂烂的帷帐,墙上的幔子还随风飘动,橡木雕花嵌板上的金粉却已剥落了——我常常到那座古老的大花园里去玩,那花园简直叫我一个人独占了,偶尔才碰上一个孤零零的老园丁——那园子里,油桃和桃子垂在墙头上,我根本不去碰它,因为那是禁果,除非偶然一回两回——因为,我更高兴在那些带着忧郁神情的老水松树或者树之间跑来跑去,从地上捡那么几颗红浆果,几只果,而那些果只能看,不能吃——有时候,我随便躺在嫩草地上,让自己完全沉浸在满园子的芳香之中——要不然,我就在桔子园里晒太阳,晒得暖洋洋的,一边想象自己跟那些桔子、好些菩提树一同成熟起来——再不然,我就到花园深处,看那些鲦鱼在鱼池里穿梭般游来游去,不定在哪里还会发现一条很大的梭子鱼冷冷落落地停在深水之间,一动不动,好象对于那些小鱼们的轻狂样儿暗中表示鄙夷,——我喜欢的是诸如此类无事忙的消遣,而对于象桃子呀,油桃呀,桔子呀等等这些普通的小孩子们的诱饵,碰也不去碰它。

Separation of them and synthesis, biological activities of their derivatives are of great signfication in development of advanced-processed products of resin.In this paper, Abietic acid with 90.9% and 97.5% purity were obtained using A amine salt method and B amine salt method for the first time.

本文提出两种提纯高纯度酸的新方法,即A胺盐法和B胺盐法,A胺和B胺均为自制品,通过A胺盐法和B胺盐法可分别得到纯度为90.9%和97.5%的高纯度酸,成本仅为文献报道常用的二戊胺盐法成本的1/5和1/3。

About 90%of RFAs in DCS of deinked pulps were resin acids,among which DHA and abietic acid were the predominant ones.

脱墨浆DCS中树脂酸占脂肪酸和树脂酸总量的近90%,主要是脱氢酸和酸。

The oxidation of abietic acid was studied by UV spectrophotometer on the polyethylene film. The effect of antioxidants such as MBP, FMH, DBH, DSB3 and DSB6 on the oxidation of abietic acid was discussed. Antioxidant value was used to determine their antioxidative activities.

采用紫外分光光度分析方法研究了酸在聚乙烯膜上的氧化反应,考察了MBP,FMH,DBH,DSB3,DSB65种抗氧剂对酸氧化反应的影响,提出了用抗氧化值AO考核抗氧剂的抗氧化能力。

It was found that ARA was composed of esterification products of (2-HEA)-ester with pimaric acid, dehydroabietic acid, abietic acid and two isomers of acrylpimaric acid. ARA is a good crosslinking agent which can copolymerize with most vinyl monomers. The properties of solvent-resistance and heat resistance of the copolymer were improved considerably by the use of ARA.

实验结果表明:ARA主要由海松酸、脱氢酸、酸和丙烯海松酸的二种异构体的丙烯酸-2-羟基乙基酯的酯化产物组成,ARA是一种良好的交联剂,可与大多数乙烯基单体共聚合,其与MMA的共聚物的耐溶剂性和耐热性均得到了较大幅度的提高。

The costs of abietic acid separating with A amine salt method and B amine salt method were 1/5 and 1/3 of cost separating with di-n-amylamine salt reported in the literature respectively.

同时研究了以酸异构化、高温异构化和微波辅助酸异构化松香制备酸含量较高的异构化松香的实验条件,以异构化松香为原料,采用多种方法分离提纯酸,得到最佳分离提纯条件。

Thecompositions of raw material and products were identified with GC-MS, the results indicatedthat the products were composed of (β-acryloxyl ethyl) esters of dihydropimaric acid anddehydrogenated abietic acid, and their relative amounts was consistent with the amount ofdihydropimaric acid and dehydrogenated abietic acid in the disproportionated rosin.

论文还采用GC-MS对原料和产物的组分进行了鉴别,结果表明酯化产物由二氢海松酸酯和脱氢酸酯组成,且其相对含量与歧化松香中二氢海松酸和脱氢酸组成基本一致。

Thirdly, the acrylic rosin was synthesized by the addition reaction from gum rosin andacrylic acid. The levo-pimaric acid was converted into acrylic pimarie acid throughDiels-Alder addition with acrylic acid. The abietic-type acids in the gum rosin were inisomerization balance under high temperature, and the abietic acid and palstric acid would beconverted into levo-pimaric acid and reacted in the later type.

第三,通过脂松香与丙烯酸加成合成了丙烯酸松香,该反应是左旋海松酸与丙烯酸发生Diels-Alder加成反应生成丙烯海松酸,由于脂松香中的酸型树脂酸在高温下处于异构化平衡状态,因此随着反应的进行酸、长叶松酸等会异构化为左旋海松酸参与反应。

"Wanjiang farmers Book Town": to build a large-scale rural Wanjiang for wholesale and distribution center for books.

阳文化产业园&建成三大功能区:一是&皖江农民图书城,建成面向皖江农村的大型图书批发市场和集散中心;二是阳浓郁地方特色的民俗、民居风情区;三是文化产业区,以民营文化企业为主体,发展各类书画院、画廊、收藏经营、印刷出版以及各类文化设计、文化演出、文化传媒公司等。

The main component dehydroabietic acid and little component abietic acid, neoabietic acid, levopimaric acid and pulustic acid of a few types disproportionated rosin were determinated quantitatively by selecting the proper order of derivative, differential wavelength difference, scanning rate and quantitative method.

通过选择合适的求导阶数、微分波长差、扫描速度和定量方法,对不同批号的歧化松香中的主成分脱氢酸和微量组分酸、新酸、左旋海松酸及长叶松酸进行了测定(其中左旋海松酸和长叶松酸测定的是合量),实验结果令人满意。

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