双重

We choose the arid land of northwestern China as our study area because of its extensive area, specific geographical location, dry climate, varied topography, vulnerable ecosystems and long-term human disturbance, as well as the existence of current conflicts between economic development and environmental protection. Based on the literature, we choose ten desert species with clear and relatively accurate geographical distribution ranges to model their distributions:Anabasis brevifolia, Atraphaxis frutescens, Calligonum mon-golicum, Ephedra przewalskii, Gymnocarpos przewalskii, Haloxylon ammodendron, Haloxylon persicum, Ka-lidium cuspidatum, Salsola laricifolia, and Sympegma regelii.

：选择面积广阔、地理位置特殊、气候干旱、地形地貌多样、生态系统脆弱以及人类活动长期干扰，而且目前面临着西部大开发和环境保护双重矛盾的西北干旱区作为研究区域，通过收集西北干旱区多种优势种和常见种的地理分布资料，选取10种分布范围相对明确、资料相对齐备的荒漠植物种：短叶假木贼、木蓼(A- traphaxis frutescens)、沙拐枣、膜果麻黄、裸果木、梭梭柴、白梭梭、尖叶盐爪爪、松叶猪毛菜(Salsola lar- icifolia)和合头草，定量分析其地理分布与气候因子的关系，并据此估测其潜在中心分布区和潜在最大分布范围，与实际分布范围进行比较。

True RMS type, digital analog dual display!

真有效值型、数显模拟双重显示！

On the basis of the probe and research into space analytic geometry and seeing from the students ' thinking characteristics , this paper has got a proof about three vector double vector product theorem .

本文通过对空间解析几何的研究和探讨，从学生的思维特点出发，给出一个有利于学生认知结构形成的三矢量的双重矢性积定理的证明

The HC7000 has the dual Anamorphic stretch modes that eliminates the need to move an anamorphic lens.

该HC7000具有双重拉伸变形模式，无需提出变形镜头。

Can a young Chinese artist be anchored equally in two areas at the same time?

可以对一位年轻的中国艺术家进行双重的确定吗？

The decoction did not have the influence regarding to the wet weight of uterus.(2) Wet weight of ovary:Compared with the blank group,the ovary weight of other groups were significantly lighter(p＜0.05).There is two reasons:First, because of decoction intervention ahead of time,it may had the prevention and the treatment dual function;Second,it possibly promoted the ovulation, and caused the liquid discharged from the pouch of the ovary,thus promoted ovary volume and weight decline.(3) Endocrine changes:①The content of androsterone in high dose groups were significantly lower than the low dose groups(p＜0.05),Chinese herbal had certain dose-effect relationship.

上方对于子宫湿重无影响(P＞0.05)。2、卵巢湿重：用药的各组与空白组比较，对于卵巢的重量均有影响(p＜0.05)，考虑有两个原因：第一，由于造模的同时用药，有预防与治疗的双重作用；第二，可能是促进排卵，使囊内卵泡液排出，从而促进卵巢体积及重量的下降。3、内分泌改变：①高剂量组别与低剂量组别比较，在降调总睾酮的作用更大，差异有统计学意义(p＜0.05)，说明中药治疗作用具有一定的量效关系。

It finds out that stereotype and pre-emptive conclusion were behind the "enlightenment" in the 1988s; mitigation of right and anomy of operation existed in the 1990s "supervision". The "diverse" news production of in-depth reporting in new period is constantly controlled by commercial and administrative pressure.

研究发现，80年代"启蒙"背后存在思维条框与主题先行的不足，90年代"监督"中存在权力受限与操作失范的问题，新世纪深度报道"多元"生产实践中不断受到商业控制与行政控制的双重压力。

The appearance and development of vehicle promoted anthropic civilization,but it has been become the chief criminal about the power and circumstances pollution of the world.

汽车的出现和发展推动了人类文明的发展，但现在却成为世界能源和环境双重危机的罪魁祸首。

The author is opposed to the anti anthropocentric and anti humanistic nature of environmental ethics, believing that man is not only part of nature as oth...

作者认定人不仅和其他生命体一样是自然的一部分，而且是能动的，在改造环境中适应环境，必然对自然系统造成某种程度的破坏，因此当今人类为实现自身价值，在对环境自觉改造的同时要给这种"破坏"以有意识的补偿，人类就是在这种改造与补偿的双重过程中存在与发展，不断求得真善美的统一。

The Introduction presents a brief survey of foreign and domestic differences on this topic and justifies my reading from a mixed perspective of racism and anti-imperialism.

引言部分简单介绍了国内外迄今对《黑暗中心》中所表现出的种族主义及反帝国主义两种态度所持的不同看法，并提出本文是从种族主义及反帝国主义双重视野交织的角度来解读文本的理由。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐