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Term | 术语 | Definition | 定义 |
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hydrosphere | 水圈
| The waters of the EARTH's surface collectively. The 'water sphere' in comparison and contrast with LITHOSPHERE and ATMOSPHERE. | 地球表面水的总称。水圈是与陆圈、大气圈相比较而言的。 |
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hydrostatic instability | 流体静力不稳定性
| See INSTABILITY: STATIC. | 参见static instability(静力不稳定)。 |
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hydrostatic levelling | 流体静力水准测量
| The transfer of level between two points by the use of a pipe filled with water laid on the sea bed with vertical sections at each end. | 用装满水的管子敷设在海底,根据管末端的垂直断面在两个点之间传递水准。 |
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hydrostatic pressure | 流体静压
| See PRESSURE. | 在给定深度,水柱重力施加在该深度的压力。 |
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hydrostatic stability | 流体静力稳定性
| See STABILITY: STATIC. | 参见static stability(静力稳定)。 |
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hygrograph | 自动湿度记录计
| HYGROMETER which includes an arrangement for the time recording of atmosphere humidity. | 附带大气湿度记录时间的温度计。 |
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hygrometer | 湿度计
| An instrument for measuring the HUMIDITY OF THE AIR. See also PSYCHROMETER. | 测量空气湿度的一种仪器。亦可参见psychrometer(温度计)。 |
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hygrothermograph | 温湿计
| Instrument resulting from the combination of a THERMOGRAPH and a HYGROGRAPH and furnishing, on the same DIAGRAM, simultaneous time recording... more | 由一个温度计和湿度计装配在一起的仪器,同时记录大气的温度和湿度。也称为thermohygrograph。 |
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hyperbola | 双曲线
| An open curve with two parts, all points of which have a constant difference in distance from two fixed points called foci. | 指一种由两部分组成的开曲线,线上所有点到两个焦点的距离差是常数。 |
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hyperbolic line of position | 双曲线位置线
| A LINE OF POSITION in the shape of a hyperbola, determined by measuring the difference in distance to two fixed points. | 双曲线形状的位置线,通过测量到两个固定点位置距离差来确定。 |
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hyperbolic navigation | 双曲线导航
| See NAVIGATION. | 利用双曲位置线导航。 |
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hyperbolic number(s) | 双曲线注记 | Numerical figures characterizing the hyperbolae of a pattern or LATTICE in a HYPERBOLIC SYSTEM of RADIOLOCATION. | 在双曲线无线电定位系统中,用数字描述双曲线图形或位置线格网的数值。 |
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hyperbolic system | 双曲线定位系统
| Radiolocation system supplying HYPERBOLIC LINES OF POSITION. | 提供双曲位置线的无线电定位系统。 |
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hypsograph | 高程计、测高仪
| A circular instrument of the slide-rule type used to compute ELEVATIONS from vertical angles and horizontal distances. | 一种根据垂直角和水平距离计算高程的计算尺型的圆形设备。 |
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hypsographic (or hypsometric) curve | 等高线,等深线
| A curve used to indicate the proportion of the area of the surface at various ELEVATIONS above or DEPTHS below a given DATUM. | 用于表示基准面以上不同高程或以下不同深度所占区域面积比例的曲线。 |
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hypsometer | 沸点高程计、测高计
| A device for measuring HEIGHTS of land surfaces by the boiling point of water. | 利用水的沸点测量地表高程的设备。 |
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hypsometric curve | NULL | See HYPSOGRAPHIC CURVE. | NULL |
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hypsometric tints | 高程分层着色
| A succession of shades or colour graduations used to depict ranges of ELEVATIONS. Also called gradient tints or elevation tints. | 用以描述各种不同高程分层范围的一系列色调或颜色分层。也称为gradient tints 或 elevation tints。 |
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hypsometry | 测高法
| The determination of ELEVATIONS above SEA LEVEL. Generally applied to the determination of ELEVATIONS through the measurement of air pre... more | 测定海拔高度的一种技术。通常由观测液体沸点测量大气压来确定高程。 |
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hysteresis | 滞后现象(作用)、磁滞现象
| Retardation or LAG in the effect of changing forces, as in ship's MAGNETISM induced by the EARTH's MAGNETIC FIELD. | 因为地球磁场引起船磁感应,引起磁力变化的阻滞或者滞后效应。 |