查询词典 datum point

In this paper these parameters were studied based on the datum observed in Yongledian irrigation experiment station in Beijing.

这些参数影响SPAC系统中能量的分配和水分传输规律。同时，在采用该模型模拟农田作物的水热运移时，过去的许多算法中考虑叶面积指数主要是用它来计算消光系数k和腾发量等。

As well as the experiment fitted curve and carries on the comparison demonstration simulation result basically with other correlation reference in empirical datum with the theoretical analysis experiment result consistent.

以及实验拟合曲线并与其他相关参考文献中的实验数据进行比较显示仿真结果与理论分析实验结果基本一致。

The local vertical datum was traditionally defined by the local mean sea level at a tide gauge or at a group of tide gauges.

局部高程基准通常由一个验潮站所测的当地平均海面确定。

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。

Cable dampener cannot be rolled up but must be hung over the cable.

缆帆不能被卷起，必须保证处于展开状态

"This skylark is a present from my master," he says.

"这只云雀是我主人献上的礼物。"他说。