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hazard beacon | 障碍标，危险物立标，危险警告信标
| See BEACON. | 标识障碍物或者危险物的信标。 |
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haze | 霾
| Suspension in the ATMOSPHERE of extremely small, dry particles which are invisible to the naked eye but are numerous enough to give the sky ... more | 肉眼看不见的非常微小的粒子悬浮在大气中，大量的存在足以使天空呈乳白色。 |
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head | 陡岬，回流浪花
| A precipitous CAPE, or PROMONTORY. See also HEADLAND. That part of a RIP CURRENT that has widened out seaward of the BREAKERS. | 陡峭的岬或海角。亦可参见headland（海岬）。
拍岸浪向海一侧的回流部分。 |
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heading | 船首向
| The direction in which a vessel or craft is pointed, usually expressed in DEGREES from NORTH (TRUE, MAGNETIC OR COMPASS) | 船舶艏艉线的艏方向，常以偏北（真北、磁北或罗经北）度数表示。 |
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headland | 高角，海角、海岬
| A high steep PROMONTORY. Usually called HEAD when coupled with a specific name. | 高陡的海角。时通常加上某一特定名称时称为Head（高角）。(如成山角) |
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head sea | 顶头浪、迎浪
| A SEA in which the WAVES move in a direction approximately opposite to the HEADING. | 近似直接向船头运动的海浪。 |
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headwater(s) | 河源头，上游、源流
| The STREAMS from the sources and upper parts of a RIVER. | 河流的源头和上游部分。 |
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headway | 前进，航行速度
| Motion in a forward direction. Also called SEAWAY. | 向前方向的运动。亦可称为Seaway。 |
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head wind | 顶头风，逆风
| WIND which blows in a direction opposite to that in which an object is moving, with respect to the EARTH's surface. | 以地球表面为参照物，风向同某一物体运动方向相反的风。 |
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heat equator | 热赤道
| See EQUATOR: THERMAL. | 参见thermal equator（热赤道）。 |
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heat lightning | 热闪电，无雷声闪电
| Lightning flash at a distance which may be observed as a short illumination of the sky or of a CLOUD, close to the HORIZON. | 在一定距离内观测到的接近地平线的天空或云团中的短暂闪光。 |
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heat wave | 热浪
| Marked warming of the air, or the invasion of very warm air, over a large area. | 在大范围内空气显著变暖，或热空气侵入。 |
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heave | 垂荡，起伏
| The oscillatory rise and fall of a ship due to the entire hull being lifted by the force of the sea. | 船舶由于受波浪的力量使整个船体被抬起的升降运动。 |
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heave compensation | 垂荡（波浪）校正、波浪补偿
| The removal of the effect of wave motion from the recorded seabed profile. | 从海底测线记录中消除波浪运动的影响。 |
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heavenly body | 天体
| See CELESTIAL BODY. | 参见celestial body（天体）。 |
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heel | 横倾
| Transverse INCLINATION of a vessel due to the action of WAVES, WIND, a greater WEIGHT on one side, etc. See also LIST. | 由于波浪、风或船体一侧偏重等引起的船体的横向倾斜。亦可参见list（侧倾）。 |
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heeling error | （罗经）倾斜自差
| See ERROR. | 磁罗经在船只倾斜时所出现的自差变化。这种变化是由于船只的磁效应相对地磁场及罗经的位置改变所引起的。 |
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heeling magnet | 倾斜改正磁铁、校正倾斜磁铁
| A permanent MAGNET placed vertically in a tube under the centre of a marine MAGNETIC COMPASS, to correct for HEELING ERROR. | 为了改正倾斜自差，在航海磁罗经中心下方的管子内垂直装置的永久性磁铁。 |
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height | 高度，高程
| The vertical distance of the top of an object affixed to the surface of the EARTH, measured from a specified DATUM usually a High Water dat... more | 1、高程 从某一规定的基准面（通常是高潮基准）起算测量的某一物体顶部到地球表面的垂直距离。
2、高度 某一物体的垂直高。亦可称为vertical length。 |
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height finder | 测高仪
| A stereoscopic RANGE FINDER so constructed as to indicate vertical HEIGHTS rather than SLANT RANGE. | 一种立体镜测距仪，测量的量是垂直的高度而不是斜距。 |