during the human evolution, the masticating apparatus have been weakened by the changes of producing and living style.

a case-control study of the relation between masticating hard food and vertical root fracture

咀嚼硬物与牙根纵裂发病关系的研究

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functional magnetic resonance imaging of regional brain activity during masticating

咀嚼时局部脑活动的功能性核磁共振成像

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the result shows that the casting splint is better than the regular splint in diffusing occlusive force, improving masticate efficiency and promoting tissue rebuilding.

结果表明金属铸造夹板对分散力、提高咀嚼效率促进组织修复均优于钢丝塑料夹板。

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by the numerical simulations of the free surface velocity histories and based on the best consistence between the computational results and the experimental ones, the material parameters in the damage evolution equation and the spoliation criterion are obtained.

通过自由面速度历史的数值模拟，并基于计算结果与试验结果间的最佳一致性，得到了损伤演化方程和层裂准则中的材料参数。

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might aid in maintaining the neutrality of the united states with dignity in the wars of other powers and in saving the property of their citizens from spoliation.

而在其它权利的较量中可维护美国的中立和尊严，捍卫公民财产不受侵犯，

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thus, the spoliation of evidence system can be established.

从而，我国的证明妨碍制度初步得以确立。

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therefore, it should be implemented that plotting out function zone by means of geographic environment, rationally scheming land, enlarging the range of paid using land, establishing flexible and varied system of safeguarding plowland, affording economical support for industrialization, positively and reliably boosting industrialization.

为此，应采取根据地理环境特点划分土地利用功能区、合理配置土地、加大土地有偿使用力度、建立灵活多样的耕地保障体系等举措，为工业化提供经济支持，积极稳妥地推进工业化进程。

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it is our country's basic national policy that "utilizing land rationally and protecting plowland efficiently". the important guarantee to stick up for this basic national policy is to strengthen executing the law in managing land, especially to solve the difficulty in executing the law.

合理利用土地，切实保护耕地是我国的一项基本国策，而加强土地执法特别是解决执法难的问题是维护这项基本国策的重要保障。

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the loss of water and soil on slope plowland and enclosure land of the hillside for regeneration in karst areas of xichou were analyzed, the result shows that the runoff is influenced by the quantity and intensity of rainfall.

对西畴岩溶地区坡耕地和封山育林地的水土流失测定结果表明：降雨多少和降雨强度对径流影响较大，一般降雨量多的年份或月份，产生的径流量和泥沙流失量也较多。

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because most areas in the ecotone are gentle slope hills, and the slope plowland accounts for a large proportion, so it's very important to manage eco-environment in the gentle slope hills.

本区地形以缓坡丘陵为主，坡耕地占很大比重，因此加强坡耕地的治理显得十分必要。

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at last, it brings forward six suggestions to develop the regional agriculture, for example, improving the mutual mechanism of regional dividing and collaborating, faithfully protecting plowland and perfecting the circulating tache.

最后提出完善区域分工协作互动机制、切实保护耕地、完善流通环节等6项发展区域农业政策建议。

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it is necessary to plant leguminous frutex and pasture in large scale when the project of returning plowland to pasture and forest is carried into execution in the west of china.

我国西部退耕还林还草工程的实施，需要大面积播种豆科灌木和豆科牧草。

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this article aimed to study how to improve the utilization of the water resources by applying the technology of filtration irrigation to the plowland croppers in the hills area of loess tableland.

本题目研究的目的是在黄土高原丘陵区研究大田农作物应用节水渗灌技术来提高其对水资源的利用效率。

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during the period of 1996 to 2000, the main conversion relationship occurred between natural wetland and wasteland, except that a large area of marsh wetland was converted to plowland;

人工湿地主要与未利用地发生转换。1996～2000年期间自然湿地中除沼泽转换关系主要发生在沼泽与耕地之间外，河流、滩地和湖泊主要与未利用地发生转换关系；

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supervision to the implementation of urban and rural planning has been strengthened, and the over-speed tendency of plowland occupation by urban and rural construction has been initially limited;

强化城乡规划实施的监督，城乡建设占用耕地总量过快增长的势头得到初步遏制；

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so returning plowland to plant grass, can renew vegetation, improve environment, and also get notable benefit for its various production arrangement, wide-ranging and long production chain.

退耕还草，发展草业，不仅可以恢复植被，改善生态环境，而且由于其生产层次多，范围广，产业链长，效益显著。

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therefore, the development and application of surface subsidence-reducing in mining area is an important method of increasing plowland acreage and protecting environment.

因此开发和应用采动区地表减沉技术是增加耕地面积，保护环境的重要手段。

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there are interlaced characteristics of agriculture and stock raising and plowland and grassplot.

高寒半干旱农牧交错带具有农业与牧业兼业，耕地与草地交织的特点。

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the research is to analyze the discrepancy of fujian plowland intensive use level in space-time adopting principal components analysis synthesis estimate model.

本文利用主成分分析综合评价模型，选取四大指标对福建省耕地利用集约水平时空差异进行研究。

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the usage of excel 2000 in the machine account of plowland reserve is discussed in the paper.

本文论述Excel2000软件在建立耕地储备台账中的运用方法。

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