Chinese English

A small globe representing the CELESTIAL SPHERE, on which the apparent positions of the STARS are indicated. It is usually provided with graduated arcs and a suitable mount for determining the approxi­mate ALTITUDE and AZIMUTH of the STARS, to serve as a STAR FINDER. Also called celes­tial globe.

描绘天球的小圆球。在该圆球上，标记有星体的近似位置。通常在表面标有刻度的弧线和适当数量星体的地平纬度和地平经度近似值，可当做寻星器使用。亦称celestial globe。

大气层处于流体静力平衡状态时，空气中的质点如果承受了一个使它移动的流体静压力，就会由它的起始高度移动到另一个高度，亦称hydrostatic instability。

大气流体静力均衡状态，在此状态下，自起始水平面移动的空气粒子，其所经受的流体静力，总趋向于使它恢复到这个水平上。亦称hydrostatic stability。

Generally, a permanent or temporary location where scientific OBSERVATIONS and measurements are made. In SURVEYING, a point whose POSITION has been (or is to be) determined. A station may be a marked station (i.e., a point more or less permanently marked for recovery) or an unmarked station, one which is not recoverable. Also called survey station.

一般指用作科学观测和量测的永久或临时地点。在测量中，指其位置已经（或有待）测定的点。测站可以是有标志站（即不同程度的永久性可恢复站）或无标志站（不能恢复）。亦称survey station。

在其上方进行测量仪器对中以及实施观测的测量点，它与其代表的站点不在同一条垂直线上，并且在同其它站点观测值联合计算时需要对观测值进行偏心改正。也称为false station或 satellite station（偏心观测站）。见eccentric reduction（偏心改正）。

In SURVEYING, an object whose horizontal POSITION is determined by OBSERVATIONS from other STATIONS, no OBSERVATIONS being made at the object itself. Where the object is observed from only two stations, the position is termed a no check position as there is no proof that such OBSERVA­TIONS are free from BLUNDERS. Intersection stations are either objects which would be difficult to OCCUPY with an instrument, or SURVEY SIGNALS whose POSITIONS can be determined with sufficient ACCURACY without being occupied. Also called intersected point.

在测量中，通过其他站点的观测确定目标点水平位置，而该目标点本身不进行任何观测。只通过两个站点观测的目标点，其位置称为无检核点位，因为不能证明这样的观测无差错。交会点往往是使用仪器设站有困难的地点，或不设站而有足够的精度测定其位置的测量觇标。也称intersected point（交会点）。

A TRIAN­GULATION or TRAVERSE STATION at which a LAPLACE AZIMUTH is determined. At a Laplace station both ASTRONOMICAL LONGITUDE and ASTRONOMICAL AZIMUTH are determined.

A STATION through which the main computations and ADJUSTMENTS of the survey data are carried and serve for the continued extension of the SURVEY.

The geographic location at which any set of oceanograp­hic observations are gathe­red. The STATION may be occupied by a mobile PLATFORM (a ship) or a fixed platform such as a tower.