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The extraction methods of Quaternary pollen and spores are the bases and precondition in Quaternary Palynology. Northern China is in particular physical geography environment. In Quaternary there are many different types of sediments in northern China. And at all times extraction methods of Quaternary pollen and spores from different type of sediments are the difficulties and highlights in North China.

孢粉提取方法是第四纪孢粉学研究的基础和前提，中国北方地区具有独特的自然地理条件，第四纪以来形成了特有的沉积物类型，不同沉积物的孢粉提取研究一直以来是中国孢粉学研究的难点和热点。

The result of factor analysis can provide the changes of relative precipitation and temperature variations. In trace elements, Cu, As, Zn, Pb and Ni were apparently enrichmented in soil layers and are sensitive to climatic changes. Carbon isotope is more sensitive to climatic changes than that of oxygen isotope in loess stratigraphy. The heavy mineral are varified in the loess stratigraphy, but their content differences between loess and palaeosol is little. Though the palynologic analyses results reveal that pollens and spores are fewer in the loess stratigraphy, they differ greatly in loess layer and palaeosol layer not only in species but also in types, i. e., the pollens and spores indicating warm and moist climate, such as Lles, Podocarpus, Polopydium, Pteris grerilliana Wall, Pterocarya and Juglans appear in palaeosol layers, while those indicating cold and dry climate such as Ephedra, Artemisia, Chinopodiaceae, Picea and Abies exist mainly in loess layers. The pollen content of broad-leaved tree mainly consisting of Pterocarya is up to 60% in palaeosol 〓, while the content of Ephedra is more than 50% in 〓 loess layer, showing that the environment differed greatly when 〓 and 〓 were formed.

当然，常量元素氧化物的组合因子分析结果可提供相对降水与相对温度在剖面的变化，因而来反映气候状况更为理想；微量元素中Cu、As、Zn、Pb与Ni在成土过程中富集明显，亦较好地反映了气候变化；稳定同位素中的碳同位素比氧同位素更能敏感记录气候的变化；研究区黄土地层中重矿物种类较多，但黄土层与古土壤层中含量差异不大；孢粉分析结果揭示，尽管研究区黄土层中孢粉总量相对较为贫乏，但黄土层与古土壤层中孢粉种属相差较大：在古土壤层内出现了指示相对暖湿环境的冬青属、罗汉松属、水龙骨属、林下凤尾蕨、枫杨、胡桃等植物孢粉，而黄土层中麻黄、藜科、蒿属及冷杉、云杉含量较高。

The paper investigated the effect of malayic grafted polypropylene on WF/PP interface, the respective influence of filler size and filler content on composite performance, and the influence of treatment by stearic acid, titanmi...

研究了马来酸酐接枝聚丙烯对复合材料的界面与性能的影响，竹粉尺寸及含量对复合材料力学性能及加工性能的影响，硬脂酸及偶联剂NDZ105、NDZ201、KH550 对木粉/聚丙烯复合材料界面与性能的影响，以及玻纤/木粉/PP 三相复合体系中玻纤含量和木粉含量对材料力学性能的影响。

The results showed that the irradiation treatment in the dose of 2.0-8.0kGy is not significantly effective to the contents of total sugar, crude protein and crude fat in walnut powder. The content of crude fiber in irradiated walnut powder increased, but not significantly. The irradiation had barely change on the contents of the lauric acid and myristic acid, and non-significant effects on the contents of palmitic acid, palmitoleic acid, stearic acid, leinoleic acid, arachidic acid and linolenic Acid. However, the irradiation contributed to significant increase in the content of oleic acid with the irradiation dose. When irradiation dose reached 8.0kGy, the content of oleic acid had an increase of 4.3%. Irradiation will not change the sensory index of walnut powder much when irradiation dose is lower than 8.0kGy.

结果表明：剂量为2.0～8.0kGy时，辐照对核桃粉中的总糖、粗蛋白和粗脂肪含量无显著影响；辐照后的粗纤维含量有一定的增加，但不显著；辐照对核桃粉中的月桂酸和肉豆蔻酸含量基本没有影响，对棕榈酸、棕榈油酸、硬脂酸、亚油酸、花生酸和亚麻酸含量有一定的影响，但不显著；辐照后核桃粉中的油酸含量随辐照剂量的上升而显著增加，剂量达到8.0kGy时，油酸含量增加了4.3%。8.0kGy以下辐照对核桃粉色泽、气味、口感无明显改变。

Research results indicate that X FLOUR has notable effects of fluidizing and water reducing.

研究结果表明：X粉具有显著的流化与减水效应，其流化与减水效果与目前市售掺合料的最高水平相当，明显好于硅灰。X粉与硅灰复合后，仍具有流化效应。X粉产生流化效应的机理，一是增加水泥浆悬浮体系的分散性；二是通过填充效应减少填隙水，增加了用于混凝土流动性的水量；三是增加混凝土混合料的浆体体积。X粉流化与减水效应的发挥，以与高效减水剂双掺为前提。

Model PMG series high efficient ball mill have been designed with the merits of open circuit grinding system and important renovations on traditional ball mills. Besides they have all the good advantages of open circuit mills, production capacity has been raised substantially, product becomes super fine and blains have been increased. It has provided a new type of grinding equipment for producing high strength grade cement with high output and super finess.

PMG 型系列高效球磨机是在开流粉磨系统所具有的优缺点中扬长避短而设计的高效球磨机，对传统的球磨机做了重大的改进，除具有开流粉磨系统一切优点之外，与同规格的球磨机相比， PMG 型系列高效球磨机产量有了大幅度的提高，且粉细、比表面积增大，实现高产、高细，为生产高标号水泥提供了一种新型的粉磨设备。

This paper targets at the design of a new dry process kiln cement grinding plant, whose production capacity is 2500 tons of cement clinkers per day. According to some relative references and the product quantity required per day, we design and calculate the cement burden plan, the three great balances (which include material balance, main engine balance and storehouse balance) and the choice of the type of equipments used in the cement grinding plant.

本论文就2500 t/d（日产2500吨）熟料新型干法窑水泥粉磨车间进行设计，根据相关文献以及对产量要求对水泥的配料方案、三大平衡（物料平衡、主机平衡、储库平衡）和水泥粉磨车间系统设备的选型进行设计与计算，并据此对水泥粉磨车间的主要粉磨设备以及其相关的附属设备的型号进行了选择。

Mainly due to the paper in the manufacturing process in the business card printing and membership card production processes may occur in the anti-dropping paper, shedding and accumulate in blanket above, affect the imprinted ink dot, left the correct delivery, paper above paper and paper powder will pass the rubberand, block drum, passes through the rollers are passed to the monlchamus sluicing inside, thus affecting the transport of monlchamus road, experience the paper off powder serious paper business card printing and membership card at the end of production of monlchamus tuhung riverbeds are gray, paper wool, paper powder, at which point inking at, imprinted inks are printed on your mind, and the cultiuation of 1 000 paper white adhesion on the blanket, you need to wipe down blanket.

次给是由于纸弛在创作发明工艺方背的来因，在制卡和会员卡制作历程洋不定会表现纸弛脱粉掉不净，并且积聚在橡皮布上背，感化痕迹不朱色的网点、图不白侧确传达，纸弛上背的纸灰、纸粉不离会堵住橡皮、印版滚筒，不纬过不朱辊传达到不朱斗槽边背去，从而感化不朱路的传输，碰到纸弛掉粉惨轻的纸弛，制卡和会员卡制作到最后不朱斗边全是纸灰、纸不净、纸粉，此时不朱量闭到最不小，痕迹不朱色也显得醲郁露底，印上1 000弛纸弛白花花黏附在橡皮布上，不离必给擦洗橡皮布。

Mainly due to the paper in the manufacturing process in the business card printing and membership card production processes may occur in the anti-dropping paper, shedding and accumulate in blanket above, affect the imprinted ink dot, left the correct delivery, paper above paper and paper powder will pass the rubberand, block drum, passes through the rollers are passed to the monlchamus sluicing inside, thus affecting the transport of monlchamus road, experience the paper off powder serious paper business card printing and membership card at the end of production of monlchamus tuhung riverbeds are gray, paper wool, paper powder, at which point inking at, imprinted inks are printed on your mind, and the cultiuation of 1 000 in the white paper in the blanket on adhension, you need to wipe down blanket.

次给是由于纸弛在创作发明工艺方背的来因，在制卡和会员卡制作历程洋不定会表现纸弛脱粉掉不净，并且积聚在橡皮布上背，感化痕迹不朱色的网点、图不白侧确传达，纸弛上背的纸灰、纸粉不离会堵住橡皮、印版滚筒，不纬过不朱辊传达到不朱斗槽边背去，从而感化不朱路的传输，碰到纸弛掉粉惨轻的纸弛，制卡和会员卡制作到最后不朱斗边全是纸灰、纸不净、纸粉，此时不朱量闭到最不小，痕迹不朱色也显得醲郁露底，印上1000弛纸弛白花花黏附在橡皮布上，不离必给擦洗橡皮布。

The coal tar pitch powder was used with each of 22 kinds of dispersants prepared coal tar pitch water slurry,and 6 kinds of dispersants were selected to prepare coal tar pitch water slurry with the high temperature coal tar pitch powder which has a softening point of 105℃.

采用冷冻粉碎的方法将软化点为90℃的中温煤沥青制得粒度≤200目的煤沥青粉后，再与22种分散剂制备煤沥青水浆，从中筛选出6种成浆性好的分散剂再与软化点为105℃的高温煤沥青粉制备煤沥青水浆，结果表明中温煤沥青粉比高温煤沥青粉更易制得稳定性好的煤沥青水浆。

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。