查询词典 in the dust

Soil erosion by wind, as a natural disaster haunts on dry lands, not only degrades soil productivity but also often results in dust blizzard weather. It may cause pollutions of air and water, damages of highway and railway, wear and tear of buildings and machinery and harmfulness in health of people and animals. Therefore, to combat wind erosion means improving the environment for people to live and work, means heightening the living standard of the local people, and means promoting productive forces. But China has a vast land where probably occur wind erosion disasters, the arid, semiarid and subhumid areas of the temperate zone all are potentially hit by wind erosion. To control wind erosion in China is a very arduous task. More difficult is to achieve recognizable effectiveness with lowest cost.

中文题名宁夏土壤风蚀研究副题名外文题名 Estimation of wind erosion in Ningxia 论文作者李玉宝导师王礼先孙保平教授学科专业水土保持与荒漠化防治研究领域\研究方向荒漠化防治学位级别博士学位授予单位北京林业大学学位授予日期2001 论文页码总数100页关键词风蚀土壤风蚀土壤侵蚀馆藏号BSLW /2003 /S157 /14 中国发生土壤风蚀的潜在区域包括温带干旱、亚干旱和亚湿润气候下的广大地区，如何有效地预防和治理土壤风蚀，如何以最小的代价达到满意的防治效果，这是很值得研究的问题。

In my light they come and go as the specks of dust dancing in the sunbeam.

在我的光中它们来来去去，像阳光下飞舞的尘埃。

Oneself walk in the park, is the prospects of an atmosphere of desolation everywhere, the night be quiet pole, the light be dreary, in the breeze curl up sand dust, lightly of candlelight tinily jump about, seem to be so infinitesimal, weak, the parasol tree of street both sides be also withered Huang, the leaf float to fall in succession on the ground, trample on the very thick and withered leaf and feel matchless soft, again rise hope a tree, not from get send out 1 to draw a deep sigh!

春、夏转眼过去了，随之而来的是秋天。晚秋傍晚时分，不再特别耀眼的太阳西下，夜幕降临了。自己走在公园内，到处是一片凄凉的景象，夜静极了，灯光黯淡，在卷起沙尘的风中，轻轻的烛光微微地跳动，显得那么渺小、脆弱，街道两旁的梧桐树也枯黄了，叶子纷纷飘落在地上，踩在厚厚的枯叶上，感到无比柔软，再抬头望树，不由得发出一声长叹！

In the chapter three, based on the second chapter, by considering the damping effect of the neutral gas and the ion drag force on the dust particle, the electrostatic modes and their instabilities in the dusty plasma in the uniform magnetic field are investigated.

在第二章的基础上，第三章考虑了中性气体的阻尼和离子对尘埃粒子的拖拽力作用，对在均匀外磁场中的尘埃等离子体中的静电波和不稳定性进行了研究，发现中频和低频的波模是衰减的。

Gases and minerals , in the form of volcanic dust trapped in the ice , can tell us a lot about what the world's climate was like in past ages.

这些以火山灰的形式封冻进冰层里的气体和矿物质可以告诉我们很多关于远古时期全球气候的状况。

Gases and minerals, in the form of volcanic dust trapped in the ice, can tell us a lot about what the world's climate was like in past ages.

这些以火山灰形式封冻进冰层里的气体和矿物质可以告诉我们很多关于远古时期全球气候的状况。

Superheated steam and volcanic gases and dust, with temperatures reaching over 1000 C. flattened the buildings in the city and the entire population burned or suffocated to death. When I visited beautiful Martinique in 1989, and saw the jail cell, which still stands, Sylbaris was said to be the only survivor, but in fact there was one other man and possibly two children.

过热的蒸汽，火山的热气，火山灰，以及1000度以上的高温摧毁了整座城市所有的建筑，所有人都被烧死或熏死。1989年当我到访美丽的马提尼克岛时，参观了这个监狱，它至今依然矗立，据说Sylbaris是当时唯一的幸存者，但事实上还有一个人甚至两个孩子幸存。

If a member of our Party acts in this way, his style of work is that of the Kuomintang, and his face, caked with the dust of bureaucracy , needs a good wash in a basin of hot water

如果我们共产党员也是这样，那末，这种党员的作风就是国民党的作风，这种党员的脸上就堆上了一层官僚主义的灰尘，就得用一盆热水好好洗干净。

Results show that Pb enrichment factors varied from 1.0～1.8 in the cultural layers, and were not quite high. However, with the history going on from the Dawenkou Culture to the Longshan Culture, the Pb enrichment factor displayed an obvious rising trend, which indicated that the Pb in the cultural layers was probably associated with the development of metallurgic activities in the middle stage of the primitive society. From 5 050 cal a BP to 4 000 cal a BP, China underwent Stone Age, Chalcolithic Age and Bronze Age in sequence. Pb dust in the atmosphere increased with intensifying utilization of copper resources, which was probably the main cause of the rising enrichment factor in the cultural layers.

但是随着时间的推移，从大汶口文化到龙山文化，Pb的富集系数有明显逐步上升的趋势，表明遗址剖面中的Pb很可能与原始社会中期发展起来的冶金活动有关。5 050～4 000 cal a BP间，中国先后经历了石器时代、铜石并用时代，到最后进入青铜时代，这个过程中铜资源利用越来越多导致产生的大气粉尘铅越来越多，很可能是YC1剖面中Pb富集系数逐步增长的主要原因。

This is not surprising, given the closer proximity of Pengyang to the Asian inland dust sources; The average content of calcium carbonateis of Pengyang section is not only higher than that of central loess plateau, but also higher the west of Chinese Loess Plateau, which reflected Pengyang loess had been deposited by near Liupanshan\'s substances that contained more calcium carbonateis; The content of diffluent element of 10m depth in the section increased fast, which indicated that the modern eluviation and the leaching depth of loess may be stronger than our guess; The soil growth index can reflect the intensity of soil forming and the climatic changes; The "abrupt chang" of glacial and interglacial period was caused by strong soil-forming processes that enlarged the discrepancy of granularity between loess and paleosol. However, the magnetic susceptibility nearly cannot reflect the existence of S_8 and the magnetic susceptibility of S_7 is highest in the whole section, which is inconsistent with other studies that S_5 has the highest magnetic susceptibility.Thin-section examination shows that the micro-texture of the soil layers is divided into both cementing texture in S_7, S_5 and S_1, and granular texture in all others.

与其它剖面相比，彭阳剖面粒度总体上要比东部的洛川、西安，甚至西部的兰州、新疆东湾要粗；CaCO_3平均含量不仅高于黄土高原中部，也高于高原西部，反映出本剖面富含碳酸盐的六盘山近源沉积起到了很重要的作用；易溶元素含量在剖面10m处快速升高，淀积特征明显，反映出黄土受现代淋溶成土作用影响较大，黄土直立、疏松、多孔特性和高温与多雨组合的气候特点，使得元素淋溶、淀积的强度和深度超出了传统的认识和判断；烧失量与其它指标相比，不仅能区分冰期、间冰期；而且能够区分出次一级的冰阶、间冰阶，有较高的分辨率；土壤发育指数、红度能够反映土壤强度差异，是反映气候波动的较好指标；然而，磁化率不能反映古土壤S_8的存在，且S_7的磁化率在全剖面中最高，这与大多剖面S_5磁化率最高的特点不一致。4。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。