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	Term	术语	Definition	定义
	klaxon	电警笛	A small power FOG SIGNAL sometimes operated by hand.	小功率雾警信号，有时候可手动操作。
	knoll	小圆山，圆丘，墩	A relatively small isolated ELEVATION of a rounded shape. On the SEAFLOOR, an ELEVATION somewhat smaller than a SEAMOUNT and of rounded prof... more A relatively small isolated ELEVATION of a rounded shape. On the SEAFLOOR, an ELEVATION somewhat smaller than a SEAMOUNT and of rounded profile characteristically isolated or as a cluster. Also called HILL.	相对较小的、孤立的圆形高地。位于海底的高地。它比海山稍小，典型孤立圆形轮廓、或者作为群集存在�... more 相对较小的、孤立的圆形高地。位于海底的高地。它比海山稍小，典型孤立圆形轮廓、或者作为群集存在。也称为hill（小山）。
	knot	节	A division of the LOG LINE, by which the ship's SPEED is measured.	计程线的分划，用于测量船的速度。航海中的速度单位。一节是1海里/小时。其名称来自于计程线的节。
	kymatology	波浪学，波动学	The science of WAVES and wave motion.	研究波和波运动的科学。
	labour (or labor)	NULL	(v.i.). To pitch and roll heavily under conditions which subject the ship to unusually heavy stresses caused by confused or turbulent seas o... more (v.i.). To pitch and roll heavily under conditions which subject the ship to unusually heavy stresses caused by confused or turbulent seas or unstable stowage or cargo.	NULL
	lag	迟角，滞后，落后，延迟	The delay between change of condition and the indication of the change on an instrument. Delay in human reaction. The amount one cyclic moti... more The delay between change of condition and the indication of the change on an instrument. Delay in human reaction. The amount one cyclic motion is behind another, expressed in DEGREES. The opposite is LEAD.	环境变化和仪器指示变化之间延迟。人反映的延迟。一个周期性运动落后于另一个周期性运动的量值，以�... more 环境变化和仪器指示变化之间延迟。人反映的延迟。一个周期性运动落后于另一个周期性运动的量值，以度表示。反义lead（超前）。
	lagging of the tide(s)	潮汐滞后，潮时延后	The periodic retardation in the time of occurrence of high and low water due to changes in the relative positions of the moon and the sun.	由于月球和太阳相对位置的变化，在高潮和低潮发生时间上出现的延迟。相反的效应称之为priming of the tide�... more 由于月球和太阳相对位置的变化，在高潮和低潮发生时间上出现的延迟。相反的效应称之为priming of the tide（潮时提前）。亦可参见daily retardation（潮汐延时）。
	lagan	系浮标抛弃货物	See JETTISON.	参见jettison（抛弃货物）。
	lagging of the tide(s)	潮汐滞后，潮时延后	The retardation in the TIME of occurrence of HIGH and LOW WATER due to changes in the relative positions of the MOON and the SUN. The oppo... more The retardation in the TIME of occurrence of HIGH and LOW WATER due to changes in the relative positions of the MOON and the SUN. The opposite effect is called PRIMING OF THE TIDE(S). See also DAILY RETARDATION.	由于月球和太阳相对位置的变化，在高潮和低潮发生时间上出现的延迟。相反的效应称之为priming of the tide�... more 由于月球和太阳相对位置的变化，在高潮和低潮发生时间上出现的延迟。相反的效应称之为priming of the tide（潮时提前）。亦可参见daily retardation（潮汐延时）。
	lagoon	礁湖，泻湖，咸水湖	An enclosed area of salt or brackish water separated from the OPEN SEA by some more or less effective, but not complete, obstacle such as ... more An enclosed area of salt or brackish water separated from the OPEN SEA by some more or less effective, but not complete, obstacle such as low sand bank. The name most commonly used for the area of water enclosed by a BARRIER REEF or ATOLL.	一个封闭的咸水或半咸水水域，它或多或少的但不是全部与外海分隔开来，例如被低沙坝分开。该词更多�... more 一个封闭的咸水或半咸水水域，它或多或少的但不是全部与外海分隔开来，例如被低沙坝分开。该词更多用于堡礁或环礁封闭的水域。
	Lagrangian current observations	拉格朗日洋流观测	The method for observing ocean currents by tracking the movement of drifting floats, buoys, tracers etc. The rate and direction of mov... more The method for observing ocean currents by tracking the movement of drifting floats, buoys, tracers etc. The rate and direction of movement of a particular sample of water is measured. This is the opposite to EULARIAN CURRENT OBSERVATIONS where the movement of water past a fixed point is measured by a current meter.	使用跟踪浮体、浮标、示踪器等物体的运动来观测洋流的方法。可用于测量局部水域海流运动的方向与速�... more 使用跟踪浮体、浮标、示踪器等物体的运动来观测洋流的方法。可用于测量局部水域海流运动的方向与速率。与之相反，欧拉海流观测法是用流速仪测量通过某固定点处的水流运动。
	lake	湖	A large body of water entirely surrounded by LAND.	全部被陆地包围的一个大水体。
	lake breeze	湖风	See SEA BREEZE.	参见sea breeze（海风，向岸风）。
	lake ice	湖冰	ICE formed in LAKES.	在湖中形成的冰。
	Lambert conformal conic projection	兰伯特正形圆锥投影	See PROJECTION.	一种正形圆锥投影，该投影中所有地理子午线投影为直线，这些直线在地图以外的位置相交于一个共同点�... more 一种正形圆锥投影，该投影中所有地理子午线投影为直线，这些直线在地图以外的位置相交于一个共同点。地理纬线投影为一系列以该共同点为圆心的弧圈。经线和纬线相交成直角，地面上的角度在该投影中没有变形。这种投影有一条或两条沿线上无长度变形的标准纬线。
	laminar flow	层流，片流	LOW in which the fluid moves smoothly along STREAMLINES which are arranged in parallel LAYERS or sheets; opposite of TURBULENT FLOW. Also ca... more LOW in which the fluid moves smoothly along STREAMLINES which are arranged in parallel LAYERS or sheets; opposite of TURBULENT FLOW. Also called streamline flow.	液体按平行的层或片排列，沿流线平稳地流动；反义词turbulent flow（湍流）。也称为streamline flow（线流）。
	lamp: signal	信号灯	A compact, portable battery-operated electric lamp used as a TARGET for OBSERVATIONS or SURVEYS of high PRECISION. The parabolical reflector... more A compact, portable battery-operated electric lamp used as a TARGET for OBSERVATIONS or SURVEYS of high PRECISION. The parabolical reflector is mounted in a special case so as to facilitate pointing and adjusting.	一种小型，便携式的电池供电的灯，作为观测或高精度测量的目标使用。抛物面反光镜安装在专用盒中，�... more 一种小型，便携式的电池供电的灯，作为观测或高精度测量的目标使用。抛物面反光镜安装在专用盒中，便于指示点位或校准。
	land	陆地，土地，国土	The solid portion of the EARTH's surface, as opposed to SEA, water. A part of the EARTH's surface marked off by natural or political BOUNDAR... more The solid portion of the EARTH's surface, as opposed to SEA, water. A part of the EARTH's surface marked off by natural or political BOUNDARIES.	地球表面的固体部分，与海洋、水域相对。由自然或政治的边界划出的地球表面的一部分。
	land breeze	陆风	WIND of coastal regions blowing at night from the LAND towards a large water surface as a result of nocturnal cooling of the land surface.	由于陆地表面夜间冷却，从陆地吹向大范围水域的沿岸风。
	landfall	接近陆地，着陆，初见陆地	The first sighting of LAND when approached from seaward. By extension, the term is sometimes used to refer to the first contact with LAND by... more The first sighting of LAND when approached from seaward. By extension, the term is sometimes used to refer to the first contact with LAND by any means, as by RADAR.	从海上接近陆地时第一次看见陆地。从广义上该术语有时用来指以任何方式第一次接触陆地，例如通过雷�... more 从海上接近陆地时第一次看见陆地。从广义上该术语有时用来指以任何方式第一次接触陆地，例如通过雷达。
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