向性

A detailed investigation was conducted in this paper on the flow asymmetry and its influencing factors over an ogive slender body model, incorporated with surface pressure measurement, skin oil flow pattern visualization, hot wire dynamic signal acquasition and other relevant approaches, in a low turbulence wind tunnel.

现代先进战斗机和战木导弹常具有细长前体，大攻角条件下前体背风面会形成非对称涡结构，从而产生很大的侧向力和偏航力矩，这会严重影响飞行器的可操纵性和飞行安全。

Inefficient supervision on the marketing products causes the problem that low quality products elbow with high quality Ones, reducing the producer's benefit expectation. The official-run certification agencies make the monopolistic interest privatized or the producer's interest transfered to their own, which disagree with the principle of Pareto optimality.

认证取费过高，增加了生产者的固定成本；认证后对产品市场监督不力，又使市场上劣品排斥正品，降低了生产者收益预期；认证机构的官商性使国家垄断利益私有化，或生产者利益向认证机构转移，不符合帕累托最优原则。

Some of the main features of the Qilian belt are similar to those in western China, such as fault-related folds and thrust systems developed in thrust belts, which formed during the Himalayan orogenesis.

由於不同性质盆地的叠合，冲断带走向方向地层组成变化大；冲断带的分段性受控於古构造格局；主要发育横向叠置的多重冲断构造体系。

It would lower the degree of Deep overbite malocclusion that induced the vertical growth during the period of growth.

磨牙伸长的同时有下颌升支的代偿性生长；在生长期引导垂直向生长可有效地改善深覆牙合畸形。

Mr. Obama also won Russian assent to allow overflight rights for military transports carrying 'lethal' war materiel to Afghanistan, a deal that paves the way for 4,500 flights a year and saving the U.S. 3 million a year in fuel and other transport costs. The U.S.

奥巴马还获得了俄罗斯的同意，允许美军运输经过俄罗斯领空向阿富汗运输"致命性"作战物资，以每年4，500架次为限；这一协议使得美国每年可以节省1.33亿美元的燃料和其他成本。

The Entrance Landscape Zone is an external display window of the whole scenic spot; there are solemn majestic pailou, antique buildings, clean and green Alameda Square, stone check dam of compact modeling, and beautiful landscaping stones, which exhibit the features of Tianjiagou Ecological Scenic Spot in a condensed way to the tourists, form the identified landscape of the entrance environment to set off the simple, unsophisticated, elegant, and no lack of passionate atmosphere of the entrance; meanwhile, the Entrance Landscape Zone is also a public place for the tourists to park, buy tickets, and purchase souvenirs, where are 2 parking lots, 3 sightseeing spares, 1 tourist service center, and 1 consulting center.

入口景观区是整个景区对外展示的窗口，庄重雄伟的牌楼，古色古香的建筑、整洁苍翠的林荫广场、造型简洁的石谷坊、灵秀的景石向游客浓缩地展现了田家沟生态风景区的特色，形成了入口环境的标识性景观，烘托出古朴、雅致而又不乏热烈的入口氛围；同时也是游人停车、买票、购买旅游纪念品的公共场所，设有停车场2处、休闲观光广场3处，游客服务中心，咨询服务中心各1 处。

By using the basic method of virtual design and motion simulation of mechanical system based on Solid Works, virtual design of the robot of excavating tree stump was completed by synthetically using parametric and variable modeling technology and top-down design method. In case of the carrier was changed, the COSMOSMotion2006 was used to perform the motion simulation and optimized the parameter of the interface and the mechanical arm, by this way the useable of the new frameworks was confirmed, and in favor of reduce the exploiting cycle and exploiting cost.

通过使用SolidWorks软件的机械系统虚拟设计和运动仿真的基本方法，综合运用SolidWorks的参数化、变量化建模技术以及自上向下的设计思路，完成伐根清理机器人及其行走底盘的虚拟建模，并对由于行走底盘的改变而重新设计的接口和机械臂采用最新的COSMOSMotion2006软件进行了运动仿真和参数优化，以确定其机构可用性，有利于缩短产品的开发周期和减少开发费用。

The primary symptoms were mainly numbness, weakness and paresthesia of extremities with the characteristics of progressing from upwards to downwards.

首发症状主要为受累肢体麻木无力和感觉异常，随病程由上向下发展为其特征。13例行MR检查，示髓内占位性病变。

Foggy days is up, such as the wet dreams of Pearl gray, that coolness is a gnawing in nature, but also bite of the link, such as continuing to fall in. Like moths.

起来便是大雾天，如湿冷的珠灰色的梦境，那凉意是咬啮性的，而且咬住了就不放，像蛀虫一样不断向里钻。

Were extracted by different extracting solvents in lab, the results indicated that with the increasing of Mn concentration levels, the speciation of Mn in their roots transform from H2O-extractable species to HCl-extractable species and NaCl-extractable species, showed increases of Mn of oxalate binding and pectate binding or prontein binding in cell wall of roots; Mn of H2O-extractable species were 34.55～50.26% of total Mn in stems and increased with the increasing of Mn concentration levels, which benefited upward transport of Mn; Percentage of Mn of H2O-extractable species were 38.55～44.19% and Mn of HCl-extractable species were 20.66～28.74% to total Mn in leaves, suggesting that most Mn in leaves were the speciation of H2O-solubility organic salts or manganese oxalates. 5. Chlorophyll in leaves of Polygonum hydropiper L.

不同的提取剂对水蓼根、茎、叶的提取结果表明，随着锰处理浓度增加，水蓼根中Mn由水提取态向盐酸提取态和氯化钠提取态转化，说明根细胞壁结合的草酸盐和果胶酸盐或蛋白质结合态的Mn含量随锰处理浓度的增加而增加；在茎中，水提取态锰含量占总锰的34.55-50.26%，且随锰处理的增加其水提取态锰的比例增加，这有利于锰向上运输；水蓼的叶片中，水提取态锰占总锰的38.55-44.19%，盐酸提取态锰占总锰的20.66-28.74%，说明叶片中的锰大部分以水溶性有机盐或草酸锰的形态存在。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。