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In this paper, acetanilide used as start material was chlorosulfonated, then reacted with alkylamines with different length of carbon chain to prepare 4 p-acetylaminophenylsulfonylalkylamine.

本文以乙酰苯胺为起始原料，经氯磺化后分别和不同碳链的正烷基胺反应制得4种不同碳链长度的对乙酰氨基苯磺酰烷基胺，将其水解后制得了对氨基苯磺酰正丁胺、对氨基苯磺酰正辛胺、对氨基苯磺酰正十二胺和对氨基苯磺酰正十八胺。

This rock zone, with a NE striking, the whole length of 1 400 km and the width of 100～150 km, is characterized by not onlyalkaline rocks (analcite biotite olivine melilitites, leucititic alnoites, nephelite syenites, aegirite augite syenites, melanite syenites, riebeckite syenite and aegirite bearing quartz syenites) and alkaline granite (riebeckite granite, and aegitite augite riebeckite granite), but also a lot of syenites, monzonites and alkaline feldspar granites or miarolitic K feldspar granites.

该岩带全长约1400km，宽100～150km，不仅发育有狭义的碱性岩(方沸黑云橄榄黄长岩、白榴黄长煌斑岩、霞石正长岩、霓辉石正长岩、黑榴石正长岩和含霓石石英正长岩)和碱性花岗岩(钠闪石花岗岩、霓辉石钠闪石花岗岩)，还发育有大量的正长岩类二长岩类碱长花岗岩或晶洞钾长花岗岩。

Seven types of dimetric drawing and three types of trimetric drawing are introducedby the author with an aim to help hasten the shift of the principles derived from varioustypes of dimetric and trimetric projections from the theoretical approach to the field ofpractical use,and to alleviate the embarrassing situation that only the simple methodscan be resorted to in drawing the pictorial projections by isometric drawing and cabinetdrawing.

为了使各种形式的正二测和正三测从理论研究转向实际应用，克服长期来人们在绘制轴测图时，多数只能采用正等测和斜二测等单调情况，以及提高绘图速度，本文推荐采用七种正二测和三种正三测，并设计一套绘制这十种正轴测的专用工具--轴测多角比例尺。本文提出一套近似作这十种正轴测坐标面上椭圆的方法和数据，使其既简便又准确。

Rock Around The Clock One, two, three o'clock, four o'clock, rock Five, six, seven o'clock, eight o'clock, rock Nine, ten, eleven o'clock, twelve o'clock, rock We're gonna rock around the clock tonight Put your glad rags on and join me, hon We'll have some fun when the clock strikes one We're gonna rock around the clock tonight We're gonna rock, rock, rock,'til broad daylight We're gonna rock, gonna rock, around the clock tonight When the clock strikes two, three and four If the band slows down we'll yell for more We're gonna rock around the clock tonight We're gonna rock, rock, rock,'til broad daylight We're gonna rock, gonna rock, around the clock tonight When the chimes ring five, six and seven We'll be right in seventh heaven We're gonna rock around the clock tonight We're gonna rock, rock, rock,'til broad daylight We're gonna rock, gonna rock, around the clock tonight When it's eight, nine, ten, eleven too I'll be goin' strong and so will you We're gonna rock around the clock tonight We're gonna rock, rock, rock,'til broad daylight We're gonna rock, gonna rock, around the clock tonight When the clock strikes twelve, we'll cool off then Start a rockin' round the clock again We're gonna rock around the clock tonight We're gonna rock, rock, rock,'til broad daylight We're gonna rock, gonna rock, around the clock tonight

罗克 Around 钟一，二，三点钟，四点钟，岩石五，六，七点钟，八点钟，岩石九，十，十一点钟，十二点钟，岩石我们正去向昼夜不停今晚的岩石穿上你的最好的衣服和加入我，亲爱的我们将获得乐趣中的一些当钟用击打我们正去今晚昼夜不停摇动的的时候，我们正去岩石，岩石，岩石，鼻音化符号大白天我们正去向去昼夜不停今晚的岩石的岩石当钟响了二，三和四下，如果乐队让生活松弛些的时候，我们将为我们正去今晚昼夜不停摇动的更多对叫嚷我们是去岩石，岩石，岩石，鼻音化符号大白天我们正去去的岩石向昼夜不停今晚的岩石当排钟正确在第七天堂中按五，我们将是的六和七叫的时候，我们正去向昼夜不停今晚的岩石我们正去岩石，岩石，岩石，鼻音化符号大白天我们正去向去昼夜不停今晚的岩石的岩石当它也是八，九，十，十一的时候，我将强有力地是 goin 和那样你希望我们是去昼夜不停今晚的岩石我们正去岩石，岩石，岩石，鼻音化符号大白天我们正去向去昼夜不停今晚的岩石的岩石当钟给予十二我们将使冷下来的时候，那时再次以开始一 rockin' 昼夜不停我们是去昼夜不停今晚的岩石我们正去岩石，岩石，岩石'，鼻音化符号大白天我们正去向去昼夜不停今晚的岩石的岩石

There were significantly correlation among the 9 egg quality traits in silkies. There were positive phenotypic correlation among albumen proportion and egg weight (P.01), Haugh Unit and albumen proportion (P.05), shell proportion, shell strength and shell thickness (P.01) respectively. There were negative phenotyp

4本研究还进行了丝羽乌骨鸡蛋品质各个性状间的相关分析，结果发现蛋壳强度与蛋壳厚度极显著正相关(P.01)；蛋黄比例与蛋重极显著负相关(P.01)：蛋壳比例与蛋壳强度、蛋壳厚度极显著正相关(P.01)；蛋白比例与蛋重极显著正相关(P.01)，与蛋黄比例、蛋壳比例极显著负相关(P.01)；哈氏单位与蛋黄比例极显著负相关(P.01)，与蛋白比例显著正相关P 。

We projected the possible reaction pathways of the isomeric reaction system for n-pentane, n-hexane and n-heptane according to the products which had been explored in the experiment and the Hydrogen Overfall Hypothesis put forward by ZhongCun YuShi and Teng YunanXun for the isomerization of n-paraffins.

根据实验检测到的产物以及由中村育世、藤元薰等人所提出的正构烷烃异构化的氢溢流机理，首先设计了正戊烷、正己烷、正庚烷异构反应体系可能反应通道。(1)正戊烷异构反应体系可能反应通道(2)正己烷异构反应体系可能反应通道(3)正庚烷异构反应体系可能反应通道

Notably, compounds 12–14 can be described as a 3D open–framework with nano–channels, compound 15 can be described as a 3D open–framework with double helical channels, while compound 16 can be described as a 3D heterochiral coordination polymer with double helical channels, which can be obtained by spontaneous resolution from the racemic phosphonic acid.X–ray powder diffraction analysis shows that compound 16 is a pure phase. Surface photovoltage spectroscopy of compound 16 indicates that it possesses positive SPV response in the range of 300–600 nm and shows p–type semiconductor characteristic.

值得注意的是，化合物12-14为具有一维纳米孔道结构的三维开放骨架结构，化合物15是具有双螺旋孔道的三维开放骨架结构，而化合物16是外消旋的有机膦酸配体通过自发拆分而形成的具有双螺旋孔道的多手性三维开放骨架结构。X-射线粉末衍射分析表明化合物16为纯相；化合物16的表面光电压光谱分析中，在300-600nm范围内有3个正的光(来源：ABC论文12网www.abclunwen.com)伏响应带，表明它具有p型半导体的特征；化合物16的诱导表面光电压谱进一步确定它的p型半导体的特征；磁性研究表明，化合物16中两Mn原子之间存在弱的反铁磁相互作用。

The result shows that the relationship of conopy density with living cover plant space expresses a negative correlation, age class expresses a positive correlation, age class expresses a positive correlation; the relationship of conopy density with the dead covering plant and general covering plant expresses a positive linear covrelation, age class expreses an indicial ...

研究结果表明，郁闭度与活地被物负荷量呈负线性相关关系，龄级与其呈正线性相关关系；故郁闭度与死地被物和总地被物负荷量呈正线性相关关系，龄级与其呈正线性相关关系；蓄积量与地被物的负荷量呈线性正相关关系，但相关性较小。

Liquid-phase thermal desorption studies of five systems of n-paraffins adsorbed in MS-5A were conducted by tetralin as a thermal carrier.

本文分别通过对含正己烷、正庚烷、正辛烷、正庚烷+正辛烷以及含正己烷+正庚烷+异辛烷的5A分子筛在吸附惰性液体四氢萘中的热脱附实验，取得了这方面的实验数据。

After 3800 Death of the World's top math problems -- Ruler as "arbitrary angle trisection, turning round to square, fold the cube, as is 7-gon, as is 9-gon, as are 10 side of the form, as are 13-gon," The world, where people called mathematicians have challenged the "seven problems" Archimedes Newton Gauss, etc., Are hard to understand in the end.

历经3800年世界顶级数学死题——尺规作&任意角三等分、化圆为方、倍立方体、作正七边形、作正九边形、作正十一边形、作正十三边形&，全球，凡称得上数学家的人都曾挑战过这&七大难题&，阿基米德、牛顿、高斯等等，均以不得其解而告终。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。