Term 术语 Definition 定义
autocollimator
自准直仪
See COLLIMATOR.
参见collimator(自准直仪)。
automated cartography
自动制图
The performance of cartographic functions in a fully automatic mode.
采用全自动模式实现的制图功能。
automatic floating station
自动记录浮标
A BUOY equipped with instruments automatically recording oceanographic and meteorological DATA. Also called automatic buoy.
一种装有自动记录海洋和气象数据设备的浮标。也称作automatic buoy(自动浮标)。
Automatic Identification System (AIS)
自动识别系统
An automatic communication and identification system intended to improve the safety of NAVIGATION by assisting the efficient operation of ... more
An automatic communication and identification system intended to improve the safety of NAVIGATION by assisting the efficient operation of VESSEL TRAFFIC SERVICES (VTS), ship reporting, and ship-to-ship and ship-to-shore operations.
一种通过提供船舶交通服务(VTS)、船舶报告、船船或船岸之间运行的有效辅助操作,以提高航海安全的自动通信与识别系统。
automatic gain control
自动增益控制
A circuit which automatically maintains a constant output volume regardless of input signal strength. Also called automatic volume control.
无论输入信号的强弱,都可以自动保持恒定输出强度的一种电路。亦称为automatic volume control(自动强度控制)。
automatic plotter
自动绘图仪
See PLOTTER.
参见plotter(绘图机)。
Automatic Radar Plotting Aid (ARPA)
自动雷达标绘仪
A system wherein RADAR targets are automatically acquired and tracked and collision situations computer assessed and warnings given.
自动获取、跟踪雷达目标并作出碰撞态势评估,以给出避碰警告的计算机系统。
automatic tide gauge
自动验潮仪
See GAUGE: TIDE.
参见tide gauge(验潮仪)。
automatic volume control
自动强度控制
See AUTOMATIC GAIN CONTROL.
参见automatic gain control(自动增益控制)。
automation
自动化
The technique of improving human productivity in the processing of materials, energy and information, by utilizing in various degrees elemen... more
The technique of improving human productivity in the processing of materials, energy and information, by utilizing in various degrees elements of automatic CONTROL, and of automatically executed product programming.
指不同程度地利用各种自动控制设备处理材料、能量和信息以及自动执行生产计划,提高人类生产力的技术。
autopositive
直接正像材料
A material which gives a positive copy from a positive TRANSPARENCY (or a negative from a negative) by direct processing.
通过直接处理从透明正片得到阳片的材料。
autumnal equinox
秋分
See EQUINOX.
参见equinox(二分点)。
avulsion
冲裂
Rapid EROSION of shoreland by WAVES during a STORM.
在风暴期间海浪对沿岸陆地的快速侵蚀。
awash
被波浪冲击地;被波浪淹没的
(adj. and adv.). Flush with, or washed by the WAVES.
被海浪冲洗或淹没的。
axis
轴线
The line, real or imaginary, about which something centres or revolves.
某物体的中心线或绕其旋转的线。它可以是实线,也可以是假想线。
axis: horizontal
水平轴
In a THEODOLITE or TRANSIT, the AXIS about which the TELESCOPE of the instrument rotates when moved vertically. Also called trunnion axis, o... more
In a THEODOLITE or TRANSIT, the AXIS about which the TELESCOPE of the instrument rotates when moved vertically. Also called trunnion axis, or transit axis.
在经纬仪或子午仪中,仪器望远镜垂直旋转的轴。也称为trunnion axis 或transit axis。
axis: optical
光轴
See AXIS OF LENS.
参见axis of lens(透镜光轴)。
axis: polar
极轴
In a system of POLAR or SPHERICAL COORDINATES, the primary AXIS of DIRECTION.
极坐标或球面坐标系中的主方向轴。
axis: principal
主轴
See AXIS OF LENS.
参见axis of lens(透镜光轴)。
axis: trunnion
水平轴
See AXIS: HORIZONTAL.
在经纬仪或子午仪中,望远镜俯仰纵转的旋转轴。