Term 术语 Definition 定义
bearing
方位
The horizontal DIRECTION of one terrestrial point from another, expressed as the ANGULAR DISTANCE from a REFERENCE DIRECTION. It is usually ... more
The horizontal DIRECTION of one terrestrial point from another, expressed as the ANGULAR DISTANCE from a REFERENCE DIRECTION. It is usually measured from 0° at the REFERENCE DIRECTION clockwise through 360°. The terms bearing and AZIMUTH are sometimes used interchangeably, but in NAVIGATION the former customarily applies to terrestrial objects and the latter to the DIRECTION of a point on the CELESTIAL SPHERE from a point on the EARTH. A bearing is designated as true, MAGNETIC, or compass as the REFERENCE DIRECTION is TRUE, MAGNETIC, or COMPASS NORTH.
指地面一点至另一点的水平方向,表示为自基准方向起算的角距离。通常自基准方位向的0°开始按顺时针... more
指地面一点至另一点的水平方向,表示为自基准方向起算的角距离。通常自基准方位向的0°开始按顺时针方向测量至360°方位和方位角。方位和方位角有时可以互用,但在航海上,前者习惯应用于地面物体,后者习惯于指地球上的点至天球上的点的方向。当方位以真北、磁北或罗经北为基准方向时,则分别称为真方位、磁方位或罗经方位。 
bearing: acoustic
声学定位,声方位
See BEARING: SONIC.
参见sonic bearing(声方位)。
bearing: compass
罗经方位
See BEARING.
参见bearing(方位)。
bearing: danger
危险方位
The maximum or minimum BEARING of a point for safe passage of an offlying danger.
能避开危险物,保证航行安全的点的最大方位或最小方位。
bearing: great circle
NULL
The initial DIRECTION of a GREAT CIRCLE through two terrestrial points, expressed as ANGULAR DISTANCE from a REFERENCE DIRECTION. BEARINGS o... more
The initial DIRECTION of a GREAT CIRCLE through two terrestrial points, expressed as ANGULAR DISTANCE from a REFERENCE DIRECTION. BEARINGS obtained by any form of RADIANT ENERGY are great-circle bearings.
NULL
bearing: grid
格网坐标方位、格网方位角
BEARING relative to GRID NORTH. See also AZIMUTH: GRID.
以格网北为基准的方位。亦可见grid azimuth(坐标方位角)。
bearing: magnetic
磁方位
BEARING relative to MAGNETIC NORTH. COMPASS BEARING corrected for MAGNETIC DEVIATION.
以磁北为基准的方位。经过磁差改正的罗经方位。
bearing: Mercatorial (or Mercator)
墨卡托方位
See BEARING: RHUMB.
参见rhumb bearing(恒向线方位)。
bearing: polar
极方位角
In a system of POLAR or SPHERICAL COORDINATES, the angle formed by the intersection of the reference MERIDIONAL PLANE and the MERIDIONAL PLA... more
In a system of POLAR or SPHERICAL COORDINATES, the angle formed by the intersection of the reference MERIDIONAL PLANE and the MERIDIONAL PLANE containing the point.
在极坐标系或球面坐标系中,由基准子午面与过所求点的子午面相交所形成的夹角。
bearing: radar
雷达方位
A BEARING obtained by RADAR.
由雷达所测得的方位。
bearing: radio
无线电方位
The angle between the apparent direction of a definite source of emission of ELECTRO-MAGNETIC WAVES and a REFERENCE DIRECTION, as determined... more
The angle between the apparent direction of a definite source of emission of ELECTRO-MAGNETIC WAVES and a REFERENCE DIRECTION, as determined at a RADIO DIRECTION-FINDING STATION.
在无线电测向站所测得的电磁波发射源的视方向与基准方向之间的夹角。
bearing: reciprocal
反方位角
A BEARING differing by 180° from a given BEARING.
与已知方位相差180°的方位。
bearing: relative
相对方位
BEARING relative to the HEADING of a craft.
相对船艏向的方位。
bearing: rhumb
恒向线方位
The direction of a RHUMB LINE through two terrestrial points expressed as ANGULAR DISTANCE from a REFERENCE DIRECTION. Also called mercatori... more
The direction of a RHUMB LINE through two terrestrial points expressed as ANGULAR DISTANCE from a REFERENCE DIRECTION. Also called mercatorial (or mercator) bearing.
过地球上两点的恒向线的方向,表示为自基准方位起算的角距离。亦称mercatorial(mercator) bearing(墨卡托... more
过地球上两点的恒向线的方向,表示为自基准方位起算的角距离。亦称mercatorial(mercator) bearing(墨卡托方位)。
bearing: sonic
音响方位 ,声(学)方位
A BEARING determined by measuring the direction from which a SOUND WAVE is coming. Also called acoustic bearing.
由测量声波的方向而确定的方位。亦称acoustic bearing。
bearing: transit
叠标方位;串视方位
A BEARING taken of two objects when in line.
两物标成一线时的方位。
bearing: true
真方位
See BEARING.
指地面一点至另一点的水平方向,表示为自基准方向起算的角距离。通常自基准方位向的0°开始按顺时针... more
指地面一点至另一点的水平方向,表示为自基准方向起算的角距离。通常自基准方位向的0°开始按顺时针方向测量至360°。方位和方位角这两个术语有时可以互用,但在航海上,前者习惯于指地面物标的方位,后者习惯于指地球上的点至天球上点的方向。当方位以真北、磁北或罗经北纬基准方向时,则分别称为真方位、磁方位或罗经方位。
bearing circle
方位圈
A ring designed to fit snugly over a COMPASS or COMPASS REPEATER, and provided with VANES for observing BEARINGS. A similar ring provided wi... more
A ring designed to fit snugly over a COMPASS or COMPASS REPEATER, and provided with VANES for observing BEARINGS. A similar ring provided with means for observing AZIMUTH of the SUN is called an azimuth circle.
为便于航海,在罗经或罗经复示器上安装一种环,环上装有观测方位的照准器。类似的环用来观测太阳方... more
为便于航海,在罗经或罗经复示器上安装一种环,环上装有观测方位的照准器。类似的环用来观测太阳方位角,则称作方位圈(azimuth circle)。
bearing plate
方位分度器,罗经刻度盘
See PELORUS.
参见pelorus(罗经刻度盘)。
beat
差拍,差频
The periodic variation that results from the superposition of two OSCILLATIONS whose FREQUENCIES differ by a small amount.
两个频率相差很小的振荡叠加而引起的周期性变化。