大地

The material inhomogeneity because of the low velocity layer has a great effect on geoid.

低速层的存在导致的物质不均匀对大地水准面的影响比较大。

Geoid height above sea level is assumed to be zero, which is

大地水准面海拔高度为假定为零，这是

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。

Both the direct and indirect terrain effects need to be taken in the precise geoid determination of the Western China area.

在确定中国西部精确的重力大地水准面时，直接和间接的地形影响都应该被顾及。

The effects on the determination of geoid of individual geophysical data are discussed and the reasonable integration ranges are proposed.

利用实际数据讨论了各种资料对大地水准面的影响，分析了它们的影响范围，确定了计算时的积分半径。

Recommendations were also given to extend the present study to further improve the geoid determination.

文中对如何扩展当前的研究，更有效地确定大地水准面也提供了建议。

These values are then used to constrain the geoid undulations obtained from the gravimetric solution.

这些值被用于约束通过重力方法所确定的大地水准面的波动。

Chapter 4 describes all the available data in Western China test area, which was used for determining the geoid by 1DFFT.

第四章给出中国西部实验区域的所有可用于确定1DFFT 的大地水准面的数据。

A geoid undulation may be specified in relation with the Point's elevation value.

点的海拔的值与大地基准面的波动相关联。

It is demonstrated that the inclusion of terrain effects is crucial for the determination of an accurate gravimetric geoid (maximum of 0.429 m).

结果证明地形因素对确定准确的重力大地水准面的影响是至关重要的(最大影响达到0.429 m)。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。