查询词典 flat angle

The system adopted active tracking,namely calculate the input angle of the tracking device in advance,the angle is correspondent to the sun position some moment.Photoelectric sensors react the sunlight that putting on different position of the platform, feedback electrical signal.Then single-chip applys the subprogram and sends out pulse to step motors according to the signals,can control the rotate angle and direction of the step motor. The mechanism has realized the automatic track to the sun, so that the trackers top flat board can be always vertical to the sunlight and arrive the furthest receiving energy.

系统采用主动式跟踪，即预先计算好对应于某时刻太阳位置的跟踪机构的输入角度，通过跟踪器上平台不同位置上摆放的光电传感器感受该太阳位置的光照，反馈回电信号，单片机根据该信号调用子程序发出脉冲对步进电动机的转动角度和方向进行控制，实现了机构对太阳的自动跟踪，使跟踪装置的上平台始终处于垂直于光照方向，达到了能量最大限度的接收。

X-ray diffraction is one of the most common and efficient ways to measure a superlattice structure. This dissertation displays the detail results for characterization of Ge〓Si〓/Si superlattices by x-ray diffraction (including x-ray small angle diffraction and double crystal diffraction). It was found, when the growth temperature is lower, the intensities of xray small angle diffraction peaks are modulated by a periodical function, which indicates that both sets of interfaces of the superlattice is highly flat; when the growth temperature is higher, the diffraction peak intensities are simply decay with the increase of diffraction vector, which indicates that one set of interfaces is highly flat but another is not; when the growth temperature is very high, the diffraction peaks are reduced more rapidly, which indicates that both sets of interfaces are not ideal.

本文详细介绍了用X-射线衍射（包括X-射线小角衍射和双晶衍射）方法对Ge〓Si〓/Si超晶格结构特性测试的结果，尤其是发现，当Ge〓Si〓/Si超晶格的生长温度较低时，X-射线小角衍射谱峰的强度随着衍射波矢的增加而周期性调制，表明超晶格的两套界面都十分平整；当生长温度较高时，Ge〓Si〓Si超晶格的X-射线小角衍射谱峰的强度随着衍射波矢呈简单的衰减变化，对应于超晶格内有一套界面不平整的情况；当生长温度进一步提高时，X-射线小角衍射峰明显减少，表明超晶格内两套界面都不理想。

The Company under the two pillars of industry: the production of flat steel main rolling mill, two series of square steel, model range, different models can be set rolling; galvanizing plant is divided into: cold plating,; main varieties of flat iron, round bar, angle iron, channel steel, wire rod, hot galvanized flat steel, and galvanized external processing business.

本公司下属两大支柱产业：轧钢厂主要生产扁钢、方钢两大系列，型号齐全，异型号可订轧；镀锌厂分为：冷镀、热镀；主要品种扁铁、圆钢、角铁、槽钢、盘条、热镀锌扁钢等，并对外加工镀锌业务。

Main Products Introduction: a variety of materials of stainless steel coil, flat, industrial plate NO.1/2B 316 # 321 # 304 # 310S acid, high temperature resistant sheet steel channel steel pipe and metadata, such as angle steel flat steel.

主营产品介绍：各种材质不锈钢卷板、平板、工业用板NO.1/2B 316# 321# 304# 310S耐酸碱、耐高温板材管材和元钢槽钢角钢扁钢等。

The Flat-to-Down rail is alot like the flat rail except for the change in angle half way through the rail.

这个东东和完全笔直的rail的不同之处在于，它在中途是有个角度的，所以英文中叫flat-to-downrail，很形象是不是。

To develop new markets, achieve mutual benefit, we will be the spirit of customer first, abide by the contract, the price of suitable purpose and dedication to the vast numbers of users of our factory's flagship product is a test platform for the cast iron, cast iron crossed the platform, cast iron welding platform, cast iron assembly platform, power mechanical vibration test stand (also known as the trough or iron beams, and rail), cast iron box, testing rod, V-iron, granite platform as well as other rock measuring, flat iron, Mg-Al measuring series, square, flat feet, Mg, Al-light flat-foot, square angle square, square boxes, gear Beat Miriam, a 90-degreeì¨, migraine pendulum tester, crossed flat-panel, flat-panel assembly, welding plate, testing platform, surveying platform, Sizing Block machine Sizing Block, to track regulatory Sine, trough iron, power mechanical vibration test stand, combination of platform, portfolio assembled T-groove plate, instrument plate coordinate.

为开拓市场，实现互惠互利，我们将本着用户至上，信守合同，价格合适的宗旨，竭诚为广大用户服务我厂的主打产品是铸铁检验平台、铸铁划线平台、铸铁铆焊平台、铸铁装配平台、动力机械震动试验台、铸铁方箱、检验棒、 V 型铁、花岗石平台以及其他岩石量具，铸铁平板，镁铝量具系列，直角尺、平尺、镁铝轻型平尺、方形角尺、方箱、齿轮跳动仪、90度检定仪、偏摆检查仪、划线平板、装配平板、铆焊平板、检验平台、测量平台、垫铁、机床垫铁、地轨、正弦规、槽铁、动力机械震动试验台、组合平台、组合拼装T型槽平板、三座标仪平板。

With Yangtze delta tidal flat as an example, through the analysis on the magnetic characteristics of tidal flat sediment and the study on the space distribution of heavy metal elements, this thesis discussed the impact to Shanghai sea bank brought by heavy intensity development, and the interrelation between sediment power effect and heavy metal pollution space distribution. Utilizing the advantage of artificial intelligence neural network, in conjunction with environmental chemical analysis, from the angle of view of sediment magnetic characteristics, it analyzed the connection mechanism between magnetic mines and heavy metal element within tidal sediments, and built a quantitative magnetical diagnosis model, in attempt to calculating the tidal heavy metal pollution status from the magnetic measurement data of sediments and assess it's impact to the environment.

中文题名长江口潮滩重金属污染的磁诊断模型研究副题名外文题名论文作者许羽导师俞立中教授学科专业自然地理学研究领域\研究方向资源与环境信息系统学位级别博士学位授予单位华东师范大学学位授予日期2001 论文页码总数111页关键词长江口潮滩沉积物环境磁学重金属污染馆藏号BSLW /2001 /X145 /11 本文以长江口南岸潮滩为例，通过对潮滩沉积物磁性特征的分析、重金属元素空间分布的研究，探讨了上海滨岸带高强度开发对潮滩环境质量的影响，以及沉积动力作用与重金属污染空间分布格局的联系。

Cast iron flat feet can be tested with the right-angle-foot right-angle ruler can not be tested using only two parts of the verticality of the gauge, cast iron flat foot also applies to equipment installation and inspection.

铸铁平尺可以配合直角尺检验只用直角尺无法检验的两机件的垂直度的量具，铸铁平尺还适用于设备安装和检查。

The experimental velocities cover subsonic,transonic and supersonic flows,and the content includes:(1) flow over flat plate,revolution body and wing with riblets surface at zero angle of attack;(2) the effect of pressure gradient,angle of attack and slide angle;(3) the burst characteristics,characteristics of turbulence,the streak structure in the near wall region and the drag reduction mechanism.

内容涉及沟槽面平板、旋成体、机翼等在压、跨、超音速流动情况下的实验研究成果；压力梯度、攻角、侧滑角等的影响；湍流猝发特性、紊动特性、近壁区带条结构的特征及减阻机理等方面的工作。

The most standard practice is to require people to flat head, flat shoulder, flat angle of the composition of milk corners, select the location of the middle of the best visual position.

现在最标准的做法是要求人们将平目、平肩、平乳的角度组成四角，选正中的位置为最佳目视部位。

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。