查询词典 datum mark

Use the datum to design and calculate the FRP flue conduit of lectricity generating station of SANHE.

将研究所得的材料数据用于三河电厂玻璃钢烟道的设计、制备。

The paper reports on a study of datum line s errors, in addition to comparing geodesic line with short range line while expanding various kinds of shell plates and analysis error incurring reasons and error s distribution law.

本文把不同外板展开方法的测地线和短程线进行比较，分析其误差产生的原因和分布规律，从而来研究外板展开准线的几何精度。

Geodetic datum is the fundamental frame of geographical information system, surveying and mapping.

大地测量基准是开展地理信息系统和各种测绘工作的框架和起算依据。

Therefore geoid refining is one of important missions for the establishment of the height datum in a country or a region.

因此，精化大地水准面是一个国家或地区建立现代高程基准的主要任务之一。

Each pattern is the equivalent of an instruction, a part of an instruction, or a particular type of datum, such as a number or a character or a graphics symbol.

每个模式相当于一条指令、一条指令的一部分或者一个特定的数据类型，如一个数字、一个字符或者一个图形符号。

In Kubuqi sandland of Erdos plateau, from 1991 to 1996, we collected the datum of 42 months about three-toed jerboa,dersert hamster, Chinese jird, striped hamster,five-toed jerboa, and ground squirrel, and we focused to describe their seasonality, inter annual change and trends by moving average and analysis of PCA.

以 1 991～ 1 996年在在中国农科院草原研究所鄂尔多斯高原沙地草场改良试验站 6年4 2个月的调查材料为基础，运用 PCA分析技术、移动平均等方法，对该地三趾跳鼠、小毛足鼠、子午沙鼠及黑线仓鼠、黄鼠及五趾跳鼠等 6个啮齿动物种群的季节性、年季动态和趋势进行了描述分析。

In this paper, the analysis model of crustal vertical movement is established based on the hypothesis of the global flux isostatic datum, and its harmonic function series solution is proposed.

根据全球通量均衡假说建立了地壳垂直形变场的分析模型，在球面近似下求得了该模型的球谐函数级数解并拟合了两个不同区域的地壳垂直形变场，编绘了等值线图，继而在密切平面坐标系下导出了该模型的Fourier级数解。

Objective: To investigate the expression changes of Versican ofCSPGs family and its ligand CD44 in spinal cord in 3d, 7d and 14d following hemisection of spinal cord injury. Furthermore, to explore the relationships of Versican、CD44 and spinal cord injury. Besides, to offer the morphological datum for the research concerning the spinal cord repair.

目的：观察大鼠脊髓半横断损伤后3天、7天、14天，损伤处上下段硫酸软骨素蛋白多糖Versican及其配体CD44的表达变化，探讨Versican、CD44与脊髓损伤的关系，为脊髓损伤后的修复研究工作提供翔实的形态学资料。

The positions of each bar in the mechanism and various commonly used driving types are studied by vector analysis. Based on the study on the parameters of driving oil cylinder and the forces applied at each pivoting point, the inberent laws between each datum are hereupon obtained, it provides a valuable information for designers.

本文用矢量法对举升机构中各杆的位置及常用的几种驱动型式进行了分析，对骓动油缸的参数、各铰点所受的力等进行了探讨，从而得出各量间的内在规律，为设计人员提供了有价值的参考。

Marble flat scale in use rock tool, even if suffers the heavy item clash, falls several grain of ballast marble flat scale it to surpass the high-test cast iron and the steel products manufacture precision measurement datum components at most, may obtain high and the stable precision.

大理石平尺在使用中岩石工具即使遭重物磕碰，至多掉几粒石碴而已大理石平尺其优于优质铸铁和钢材制作的精密测量基准零件，可以获得高而稳定的精度。

I go to school at night.

我是上上学。

Clear Tip Nasal Aspirator: A soft time and gentle suction action makes removing excess mucus easy.

鼻吸明确提示：一个柔软的时间和温柔吸力行动使消除过剩的粘液容易。