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Term | 术语 | Definition | 定义 |
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azimuth: reverse | 反方位角 | See AZIMUTH: BACK. | 参见back azimuth(反方位角)。 |
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azimuth: true | 真方位角
| AZIMUTH relative to TRUE NORTH. | 以真北为基准的方位角。 |
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azimuthal equidistant projection | 等距方位投影
| See PROJECTION. | 方位投影的一种,从投影中心或极点辐射的直线代表的大圆,其方位角保持正确,而且沿这些线方向的长度与实地上相应的距离相等。这种投影既不属于等积投影,也不是等角投影。 |
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azimuthal orthomorphic projection | 正形方位投影
| See PROJECTION: STEREOGRAPHIC. | 参见stereographic projection(球面投影)。 |
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azimuthal projection | 方位投影
| See PROJECTION. | 在该投影中,所有从中心点或极点辐射的直线的方位和角度在投影后保持不变。 |
|
azimuth angle | 方位角
| AZIMUTH measured from 0° at the north or south reference direction clockwise or counter-clockwise through 90° or 180°. It is labelled with t... more | 以正南或正北作为基准方向,自0°顺时针或逆时针至90°或180°测量的方位。其标记方法是:以基准方向作为首标,以自基准方向测量的方向作为尾标。 |
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azimuth circle | 方位圈
| See BEARING CIRCLE. | 参见bearing circle(方位圈)。 |
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azimuth diagram | 方位图
| A DIAGRAM for obtaining graphically rather than by computation the AZIMUTHS of observed CELESTIAL BODIES. | 无需计算,通过图解法即可求得观测天体方位的一种图。 |
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azimuth mark | 方位标
| A MARK set at a significant distance from a TRIANGULATION or TRAVERSE STATION to mark the end of a line for which the AZIMUTH has been deter... more | 在离三角测量或导线测量站一定距离位置放置的标志,以标识已经确定方位的导线端点,用于后续工作的起始或参考方位。 |
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back azimuth | 反方位角
| See AZIMUTH. | 指定方位角旋转180度得到的方位角。在大地测量中,BA线的方向不同于AB线的方向。二者相差180°加上AB两点的子午线收敛角。也叫reverse azimuth(反方位角)。参见geodetic azimuth(大地方位角)。 |
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backbeach | 后滩
| Also written as two words. See BACKSHORE. | 这两个单词有时候也分开写。参见backshore(后滨)。 |
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backing wind | 逆转风
| Counter-clockwise change of wind direction, in either hemisphere. | 南北两半球上方向呈逆时针方向变化的风。 |
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backrush | 回卷
| The seaward return of water following UPRUSH of WAVES on a BEACH. | 海浪冲上海滩后转而向海的回流。 |
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backrush current | 回卷流
| See CURRENT: BACKRUSH. | 由于海岸附近和海滩附近的水位上升引起的梯度流。 |
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backshore | 后滨
| That part of a BEACH which is usually dry, being reached only by the highest TIDES. Also called backbeach. See also FORESHORE. | 海滩上除了高高潮之外一般情况下不被海水淹没的那部分。亦称backbeach(后滩)。亦可参见foreshore(前滩)。 |
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backsight | 后视
| In NAUTICAL ASTRONOMY, an OBSERVATION of a CELESTIAL BODY made by facing 180° from the AZIMUTH of the body. In LEVELLING, a reading on a LEV... more | 在航海天文学中,面朝与天体方位成180°的方向观测天体,称为后视。在水准测量中,指在事先已测得高程的点上放置水准标尺,然后在上面读数的一种测量方法,但不是指水准环的闭合量。 |
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backwash | 回流
| Water or WAVES thrown back by an obstruction such as a ship, BREAKWATER, CLIFF, etc. | 水或波浪遇到船舶、防波堤、悬崖等折回的海水或海浪。 |
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backwater | 回水
| Water turned back by an obstruction, opposing CURRENT, etc. Water held back from the main FLOW. | 遇到障碍物和逆向流阻挡而折回的水,例如从主流退缩下来的水。 |
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ballistic camera | 弹道照相机
| See CAMERA. | 一种精密的地面摄影机,通常采用玻璃底片,用于夜间以恒星为背景拍摄空间物体,例如火箭或卫星等。如果相机可跟踪卫星或类似物体,则称作跟踪摄像机(Tracking camera)。 |
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band of colour | 色带
| See STRIPES (OF COLOUR) | 参见stripes(色带)。 |