查询词典 natural

This article takes the famous figures in the history of science as its main thread,and gives a brief summary of the main ideas and achievement of modern philosophy and natural science at its different period of develoqment,and mainly examines the dominative effect of philosophy uqon natural science.

本文以科学史上的杰出人物为线索，概述了近代哲学和自然科学在不同发展时期的主要思想和成就、着重考察了哲学对自然科学的支配作用。

This phenomenon not only causes soil secondary productivity clination, water and soil erosion inside oasis but also creates downfalling or death for a great lot of natural vegetables at middle reaches of a river, downstream and desert outer oasis. It have artificial oasis lose a natural barrier and have to face desert s affection .

这不仅引起绿洲内部土壤的次生盐渍化、水土流失等一系列问题，还造成了河流中、下游及绿洲外围大量天然植的衰败、死亡，使得人工绿洲区直接面临荒漠侵袭。

An experimental set-up is designed to measure the load-deflection curve and the natural frequencies of the elastica. The measured load-deflection relation agrees with the theoretical prediction very well. On the other hand, the measured natural frequencies do not agree very well with the theoretical prediction, unless the mass of the moving clamp is taken into account.

我们设计一组实验装置以量测弹性板条的受力-变形曲线以及自然频率；受力-变形曲线的量测结果与理论值相当吻合，而自然频率的量测结果与理论值并不相符，但考虑滑动夹持端质量后，理论与实验值相符许多。

Study on the driving forces of land use/cover temporal-spatial change. On the basis of the systematical study on natural and social-ecomic factors including climate, population, technology and affluence status etc. during the past 50 years in this area, the multivariate statistics simulation models of LUCC were developed for two periods of 1950's-1980's and 1986-2000 respectively. Then, the Thiesson polygon method was used to the spatial allocation of soci-economic factors, thereby the spatial relationship between land use degree change and socieconomic factor variation was detected within GIS. Based on the analysis of the integrative characters in different geographical divisions, the electivity index was employed to describe the possible impacts of the natural landscape structure on spatial differentiation of land use transition. At last, correlation analysis between major roads and the distribution of land use change was made.

分析近50年气候资料和人文因子在不同年代的变化特点，系统地研究了气温和降水等自然因子和人口、农牧业发展、经济状况等人文因子对区域土地利用变化的影响；从时间序列的角度分析了50年代至80年代初和80年代中期至2000年两个时段土地利用／土地覆被变化的驱动因子，在相关分析的基础上，分时段建立了区域土地利用／覆被变化的自然-人文影响统计诊断模型；针对不同经济类型区选择典型县，分析近15年土地利用变化外在人文驱动力的区域相似性和差异性；尝试以THIESSEN多边形方法进行社会经济统计数据的空间化处理，探讨了土地利用程度变化与人文因素变化的空间相关关系；以优先指数模型和土地利用类型转化率与距交通干线距离的相关模型分析了景观自然与人文结构对土地利用空间转化过程的影响。

Golden palm oil moisturises the skin and DHA gives a natural colour tan in just 1-2 hours. Erythrulose works with the DHA for a longer lasting, more natural even colour.

金棕榈油精华能够滋润你的面部皮肤，配方中含有DHA成分能够在1-2个小时内就带来自然晒黑的效果，赤藓酮糖能够辅助DHA成分使效果持续时间更久，皮肤颜色更加自然。

The natural causes were landform, parent materials and weather. The man-made causes were over grazing and estrepement. The natural factors were the basic causes of sandification in Hongyuan.

自然成因包括地形地貌和水文母质因素、气候因素；人为成因包括过渡放牧，滥垦乱抢和疏干沼泽等因素。

The concept of influence degree of natural vibration period by cables is shown,and the influence of cables to the property of natural vibration of extradosed cable-stayed bridge s is analyzed by taking Xiaoxihu extradosed cable-stayed bridge in Lanzhou City as an example.

以小西湖矮塔斜拉桥为例，通过引入拉索自振频率影响度的概念，分析了拉索的存在对矮塔斜拉桥自振特性的影响，探讨了矮塔斜拉桥的自振特性与相应连续梁桥的区别；在分析矮塔斜拉桥地震反应的基础上，通过引入振型贡献率的概念，分析了高阶振型对矮塔斜拉桥动力性能的影响；分析了矮塔斜拉桥的振型耦联效应。

The paper studies fault diagnosis technology based on fruticose gas pipe network which is universal in small towns,and gives a particular description of domestic and foreign gas pipe network fault diagnosis technique based on hardware and software currently. The author uses graph theory to build up hydraulic analysis model of natural gas network and presents its solution methods. Besides, the author works out the relation between gas pipe pressure and flux in unsteady condition of fluid flow according to pressure boundary condition and differential equation group, and puts forward fault diagnosis methods and steps of the fruticose natural gas pipe network of middle pressure based on the simplification of this relation.

本文针对小城镇比较普遍的枝状天然气分配管网进行故障诊断技术研究，详细叙述了目前国内外基于硬件和软件的燃气管网故障诊断技术，利用图论理论建立了天然气管网水力分析模型并叙述了其求解方法，根据燃气管内流动的微分方程组和压力边界条件求解出非稳定流动时燃气管道压力和流量的关系，并在对此关系进行简化的基础上提出了基于中压枝状天然气管网的故障诊断方法和步骤。

GEMMY colorful artistic grounds (Lamination series, molded paper series, spray mold series and acid-coloring series)can create a variety of natural stone, bricks, wood effect in ordinary concrete surface with a beautiful natural, real and lasting color, texture durability and other characteristics.

真石丽彩色艺术地坪（压模系列、纸模系列、喷模系列及酸着色系列）能在普通混凝土表层创造出各种天然石材、砖材、木材效果，具有美观自然、色彩真实持久、质地坚固耐用等特点；琪石彩色生态透水地坪拥有15%至25%的孔隙，能使雨水直接渗入地下，有效地补充地下水，缓解城市热岛效应，能够保护城市自然水系不受破坏，具有很强的环保价值。

The factory uses geothermic energy, natural lighting and natural ventilation.

该工厂使用地热能源，自然采光和自然通风。

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。