Term 术语 Definition 定义
harbour: inner
内港
The part of a HARBOUR more remote from the SEA, as contrasted with the OUTER HARBOUR. These expressions are usually used only in a HARBOUR t... more
The part of a HARBOUR more remote from the SEA, as contrasted with the OUTER HARBOUR. These expressions are usually used only in a HARBOUR that is clearly divided into two parts, as by a narrow passa­geway or man-made structures. The inner harbour gene­rally has additional protection and is often the principal berthing area.
与外港相比,港口离海更远的部分。这种表达通常只用于被狭窄航道或人工建筑物明显分割成两部分的港... more
与外港相比,港口离海更远的部分。这种表达通常只用于被狭窄航道或人工建筑物明显分割成两部分的港口,内港通常有附加的防护设施,且常是主要停泊区域。
harbour: island
岛港,岛式港口
A HARBOUR formed, or mainly protected, by ISLANDS.
由岛屿构成或主要被岛屿防护的港口。
harbour: outer
外港
The part of a HARBOUR towards the SEA, through which a vessel enters the INNER HARBOUR.
船舶进入内港所必经的港口靠海部分。
harbour: tidal
有潮港,潮汐港
A HARBOUR affected by the TIDES, in distinction from a HARBOUR in which the water level is maintained by CAISSONS or gates.
有潮汐影响的港,区别于由沉箱或闸门保持海面水位的港。
harbour chart
港湾图,港口图
See CHART.
供船舶在港口、小型水道航行和锚泊的海图。
harbour line
港界线
The line beyond which wharves and other structures cannot be extended.
港口的界线,超出这个范围不能建设码头和其它设施。
harbour master
港务长
A local official who has charge of mooring and berthing of vessels, collecting harbour fees, etc.
负责船舶锚泊和靠泊、征收港口税等的当地官员。
harbour reach
港口河段
The reach of a winding RIVER or ESTUARY which leads directly to the HARBOUR.
直接通向港口的曲折河流或河口区域。
harbour works
港口工程
Permanent man-made structures built along the coast which form an integral part of the harbour system such as jetties, moles, quays or other... more
Permanent man-made structures built along the coast which form an integral part of the harbour system such as jetties, moles, quays or other port facilities, coastal terminals, wharves, breakwa­ters, sea walls, etc.
形成港口系统主要组成部分的永久性沿岸人工建筑物,如突码头、突堤、顺岸式码头或其他港口设施、沿... more
形成港口系统主要组成部分的永久性沿岸人工建筑物,如突码头、突堤、顺岸式码头或其他港口设施、沿海码头、防波堤、防潮堤等。
hard bottom
硬底
The seafloor not covered by unconsolid­ated SEDIMENT.
不被松散沉积物覆盖的海底。
hard iron
硬铁
Iron or steel which is not readily mag­netized by induction, but which retains a high per­centage of the MAGNETISM acquired. The opposite ... more
Iron or steel which is not readily mag­netized by induction, but which retains a high per­centage of the MAGNETISM acquired. The opposite is SOFT IRON.
不易被磁感应磁化,但可保持已磁化的磁性百分比很高的铁或钢。对应的是软铁。
hardware
硬件
All physical material components of a compu­ter system as e.g. central processing unit (CPU), peripheral devices etc.. May also include ind... more
All physical material components of a compu­ter system as e.g. central processing unit (CPU), peripheral devices etc.. May also include individual chips.
组成计算机系统的所有物理设备,例如中央处理器(CPU)、外围设备等。也可以包括单个芯片。
harmonic
谐波
A sinusoidal quantity having a FREQUENCY that is an integral multiple of the FREQUENCY of a periodic quantity to which it is related.
一种正弦波,其频率是基波的整数倍。
harmonic analysis of tide
潮汐调和分析
The mathematical process by which the observed TIDE at a place is analyzed by breaking it down into a number of constituent tides of simple ... more
The mathematical process by which the observed TIDE at a place is analyzed by breaking it down into a number of constituent tides of simple periodic forces, each having a fixed PERIOD. In this process the SUN and MOON are replaced by a number of hypothetical tide-producing bodies which move in circular ORBITS around the EARTH in the plane of the EQUATOR. See HARMONIC CONSTANTS, HARMONIC CONSTITU­ENT.
将某一地区的潮汐观测值分解成简单固定周期性力的若干分潮的数学分析方法,每个分潮都有一个固定周... more
将某一地区的潮汐观测值分解成简单固定周期性力的若干分潮的数学分析方法,每个分潮都有一个固定周期。在这数学分析过程中,太阳和月亮由一些假定沿着地球赤道平面附近的圆形轨道运动的引潮体所替代。参见harmonic constants(潮汐调和常数), harmonic constituent(调和分潮)。
harmonic constants
潮汐调和常数
The AMPLITUDE and EPOCHS of the HARMONIC CON­STITUENT of the TIDE, or TIDAL CURRENT at any place.
在任一地点潮汐或潮流调和分潮的潮幅和潮相。
harmonic constituent
调和分潮
One of the harmonic elements in a mathematical expression for the TIDE-PRODUCING FORCE, and in corresponding formulae for the TIDE or TIDAL ... more
One of the harmonic elements in a mathematical expression for the TIDE-PRODUCING FORCE, and in corresponding formulae for the TIDE or TIDAL CURRENT. Each constituent represents a periodic change or variation in the RELATIVE POSITIONS of the EARTH, SUN and MOON. Also called tidal constituent or component.
引潮力的数学表达式和相应的潮汐或潮流公式中的调和要素之一。每个分潮都代表地球、月球和太阳相对... more
引潮力的数学表达式和相应的潮汐或潮流公式中的调和要素之一。每个分潮都代表地球、月球和太阳相对位置的周期变化或演变。亦可称为tidal constituent或者 component。
harmonic prediction
调和预报,调和推算
In tidal terminology, the method of predicting TIDES and TIDAL CURRENTS by combining the HARMONIC CONSTITUENTS into a single curve. The work... more
In tidal terminology, the method of predicting TIDES and TIDAL CURRENTS by combining the HARMONIC CONSTITUENTS into a single curve. The work was usually done mechanically by a machine designed for this purpose, called a TIDE PREDICTING MACHI­NE; nowadays the work is done by COMPUTERS.
在潮汐术语中,预报潮汐或者潮流的方法,它将调和分潮综合成一条简单的曲线。这项工作通常用一种专... more
在潮汐术语中,预报潮汐或者潮流的方法,它将调和分潮综合成一条简单的曲线。这项工作通常用一种专门用于潮汐预报的机器(潮汐预报机)完成;现在这项工作由计算机系统完成。
hatching
影线
The drawing or engraving of fine, parallel or crossed lines to show SHADING.
精细绘制或刻绘的,表示阴影的平行线或交叉线划。
haven
避风港
An enclosed and protected HARBOUR.
封闭和有防护的港口。
Hayford's spheroid
海福德椭球体
The SPHEROID based upon an inve­stigation made in 1909 by Hayford, a geodesist of U.S. Coast & Geodetic Survey, using the large TRIANGULA­... more
The SPHEROID based upon an inve­stigation made in 1909 by Hayford, a geodesist of U.S. Coast & Geodetic Survey, using the large TRIANGULA­TION NET then existing in the U.S. A., and taking into account the inequal density of the EARTH's CRUST. The Geodetic and Geophysical Union (now the International Union of Geodesy and Geophys­ics) adopted in 1924 the Hayford's spheroid (with some slight modifica­tions) as the INTERNATIONAL ELLIPSOID OF REFERENCE.
由美国海岸和大地测量局大地测量学家海福德于1909年推导出的地球椭球体,它利用美国境内的大三角网,... more
由美国海岸和大地测量局大地测量学家海福德于1909年推导出的地球椭球体,它利用美国境内的大三角网,并考虑到地壳比重的不均匀性构建。大地测量和地球物理联合会(现国际大地测量学与地球物理学联合会)在1924年正式采纳海福德椭球(有少量的修正)为国际参考椭球。