黄土

Loess: loamy yellowish-brown earth found in river valleys in the Northern Hemisphere.

黄土（北半球的河谷中可见的黄褐色沙土

Soil moisture sensors based on principles of Time Domain Reflectometry,Frequency Domain and a new type of soil moisture sensor based on Standing Wave Ratio developed by China Agricultural University were evaluated with typical sandy loam,loess,peaty sand and leady loam from northern Germany.

该文针对时域反射法、频率分解法型土壤水分传感器和中国农业大学研制的基于驻波率原理的新型土壤水分传感器，在德国北部典型的沙壤土、黄土、含煤沙土及含铅壤土土样上做了试验。

Loess ; portable dynamic penetrometer ; magnetic susceptibility curve ; environment

黄土；轻便动力触探仪；磁化率曲线；环境

Transuranic nuclides ; groundwater ; colloid ; humic acid ; loess ; adsorption

超铀核素；地下水；腐殖酸胶体；黄土；吸附

Based on this idea, the author has chosen two typical loess sections of Luochuan, and Xifeng for this study, collected the successive loess columns; To probe the conditional experiments of BeO sample preparation and measurement, and improve the existing method; On the basis of the technology improvement, the author has finished 402 samples' BeO preparation and AMS measurement; Also at the same time, to separate quartz from samples at 1 cm interval for both Luochuan and Xifeng sections systematically, to carry out measurements of quartz grain-size, SUS, grey scale, carbonate content and bulk sample density; By using the grain size model, the author has set up the chronological framework for both Luochuan, and Xifeng sections and the time sequence of millennial scale abrupt climate events recorded in loess strata, and reconstructed the East Asian monsoon history over 130ka by using multi proxies; Finally, to discuss the possible mechanisms of palaeoclimatic changes tentatively.

详细地球科学的发展离不开高精度和高分辨率的研究。运用长寿命核素如〓Be作为环境过程的示踪，已成为不可替代的有效工具。本论文选择洛川、西峰两个典型的黄土剖面，连续采集柱状样；探索了BeO样品制备、测量的条件实验，改进了原有的方法，完成了402个BeO样品的制备和AMS测量；同时还系统地分离洛川、西峰剖面高分辨率（1cm）黄土、古土壤样品中的碎屑石英，测量了碎屑石英粒度，以及全样的磁化率、灰度、碳酸盐含量和容重等古气候代用指标；采用粒度年代模式建立了洛川剖面和西峰剖面的年代标尺，建立了黄土地层记录的千年尺度的气候突变事件的时间序列，多指标重建了最近130ka东亚季风变迁史；初步讨论了古气候变迁的可能机制。

The paleoclimatic implication of susceptibility and carbonates content is not clear, and they can't be used as strict proxy.

黄土-古土壤中的磁化率值和碳酸钙含量古气候意义不明确，仅可作为参考气候代用指标。

L Loess - A silt-based soil composed of wind borne materials that are normally weathered and decalcified.

l 黄土-由风化作用形成的脱钙淤泥为基本构成的土壤。

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中国传统文化有哪些中国书法、篆刻印章、中国结、京戏脸谱、皮影、武术秦砖汉瓦、兵马俑、桃花扇、景泰蓝、玉雕、中国漆器、红灯笼木版水印、甲骨文、钟鼎文、汉代竹简茶、中药、文房四宝、四大发明竖排线装书、剪纸、风筝佛、道、儒、法宝、阴阳、禅宗、观音手、孝服、纸钱乐器（笛子、二胡、鼓、古琴、琵琶等）龙凤纹样（饕餮纹、如意纹、雷纹、回纹、巴纹）、祥云图案、中国织绣、凤眼彩陶、紫砂壶、蜡染、中国瓷器古代兵器、青铜器鼎国画、敦煌壁画、山清水秀、写意画、太极图石狮、飞天、太极对联、门神、年画、鞭炮、谜语、饺子、舞狮、中秋月饼鸟笼、盆景、五针松、毛竹、牡丹、梅花、莲花大熊猫、鲤鱼、芭蕉扇、风箱黑头发黄皮肤、丹凤眼红旗、天安门、五角星、红领巾、红太阳、长江、黄河唐装、绣花鞋、老虎头鞋、旗袍、肚兜、斗笠、帝王的皇冠、皇后的凤冠泥人面塑、锄头、清朝大辫子、铜镜、大花轿、水烟袋、鼻烟壶、筷子华表、牌坊、长城、园林、寺院、古钟、古塔、庙宇、亭、井、黄土、民宅汉字、数字8、6、4 唐诗、宋词、《三十六计》、《孙子兵法》、《西游记》、《红楼梦》、《三国演义》、《水浒传》、《诗经》金元宝、如意、烛台、罗盘、八卦、司南、棋子与棋盘、象棋、围棋黄包车、鼻烟壶、鸟笼、长命锁、糖葫芦玉佩、鹫、千层底、刺绣、丝绸、檐另外我国有各种各样的传统节日，很多事情有各种礼仪和习俗……每个地方还有地方和民族的特色。

Green function defined inphase space differs from one in coordinate space by its struc-ture which exhibits nonlocatity in coordinates and oscillatorybehavior with respect to momenta.

在相空间中定义的Green函数不同于通常坐标空间的Green函数，在结构上显示出对坐标的高度非局域性，而对动量则显示出振荡行为。

The upper front part of a saddle;a saddlebow.

前鞍桥马鞍前面的上部分；前鞍桥