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The chapter two was focused on the samarium diiodide promoted organic reactions and their applications in organic synthesis, firstly, a new synthesis of highly substituted cyclopentadienes from a,β-alkynone promoted by samarium diiodide was investigated and the highly substituted cyclopentadienes were prepared in moderate to good yields under mild conditions. Secondly, the Michael addition and Michael-aldol tandem reaction of diorganyl diselenides or diorganyl disulfides with α,β-alkynones mediated by samarium diiodide were studied and a series of alkenylsulfides and alkenylselenides were prepared in good yields. Then the highly regioselecfive nucleophilic addition of the allylsamarium bromide to α,β-alkynones were explored. We found that the allylsamarium bromide reacts with α,β-alkynones to afford regiospecificly 1. 2-nucleophilic addition products in good yields under mild condition. At last we studied the coupling reaction of aryl halides promoted by NiCl〓/PPh〓/Sm〓.

第二章 研究了二碘化钐、金属钐促进的有机反应：1、二碘化钐促进下α，β-炔基酮的偶联环化反应，提供了一种制备多取代环戊二烯的新方法；2、二碘化钐促进下的二硫醚、二硒醚与α，β-炔基酮的Michael加成反应，为高产率地制备多取代的烯基硫或烯基硒化合物提供了方便可靠的新方法；3、二碘化钐促进下的二硫醚、二硒醚与α，β-炔基酮和醛、酮的Michael—aldol串联反应，提供了一种一锅法高产率地制备多取代的含硫的烯丙基醇或含硒的烯丙基醇类化合物的方便可靠的原子经济性的新方法；4、烯丙基溴化钐与α，β-炔基酮的高度区域选择性的1，2-亲核加成反应；5、NiCl〓/PPh〓/Sm〓促进的卤代芳烃的偶联反应-一种从各种卤代芳烃制备联苯类化合物的有效方法。

Benzene(benzene,toluene,dimethylbenzene) solution is favored for its easy dissolution and moderate evaporating speed,but it is also the main factor causing interior air pollution.

但同时苯系物也是造成室内空气污染的主要因素。

Reaction of ketones with sodium diselenide and sodium hydrogen selenide under the catalysis of n-BuNH2 gave a moderate yield of diselenides in a "one-pot" fashion.

在正丁胺的催化下，酮与硒氢化钠、二硒化钠乙醇溶液通过&一锅&法反应得到了中等产率的二硒醚。

Bromoesters can react with diselenide s by metallic tin in THF to give α-selnoesters in moderate togood yields.

本文报道在四氢呋喃中通过金属锡促进α-溴代酯与二硒醚反应生成α-硒代酯，反应条件温和，产率良好

Kappa Test is moderate consistency on cigarette and alcohol consumption in male monozygotic,but not on female twins and male dizygotic.

男性同卵双生子在吸烟、饮酒行为上呈现中度一致性，男性异卵双生子、女性双生子一致性差异无学意义。

Kappa Test is moderate consistency on cigarette and alcohol consumption in male monozygotic,but not on female twins and male dizygotic.

男性同卵双生子在吸烟、饮酒行为上呈现中度一致性，男性异卵双生子、女性双生子一致性差异无统计学意义。

The contemporary filial piety culture characterizes modernity, democracy, emotion, mutually profit, moderate control and ductibility.

当代孝文化具有时代性、民主性、情感性、互益性、适度规范性和一定的可延展性等特征。

The early intervention treatment can obviously decrease moderate and severe skull damage concurrent dysphrenia occurrent rate,has the guiding sense to the clinical treatment.

早期干预性治疗能明显减低中重型颅脑损伤并发精神障碍的发生率，对临床治疗有指导意义。

Note:There is moderate dysplastic change of the squamous epithelium.

注：这是鳞状上皮细胞中度异常变异，建议做锥状切除。

Promotion transportation from "lag" to "ecad" and "moderate in advance" transformation, thus the reasonable effective guidance transportation demand, builds the foundation for construction modernization Yibin.

促进交通运输从&滞后型&向&适应型&和&适度超前型&的转变，从而合理有效的引导交通需求，为建设现代化宜宾打好基础。

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。