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	Term	术语	Definition	定义
	clinometer	测斜仪，倾斜计	An instrument for indicating the degree of SLOPE or the angle of ROLL or PITCH of a vessel, according to the plane in which it is mounted.	一个测定船舶横摇、纵摇角度的仪器，该仪器以它所安装的平面为依据测出角度。
	clock	时钟	Instrument for measuring TIME and recording HOURS.	测量时间并记录时间的仪器。
	clock: atomic	原子钟	A precision clock that depends for its operation on an electrical OSCILLATOR regulated by the natural vibrational FREQUENCY of an atomic sys... more A precision clock that depends for its operation on an electrical OSCILLATOR regulated by the natural vibrational FREQUENCY of an atomic system (such as a beam). The combination of two (or more) radionuclides whose activities can be utilized to ascertain time intervals.	一种依靠原子系统（如原子束）自然振动频率来控制电子振荡器进行工作的精密时钟。结合两个或更多放射性核素可用于确定时间间隔。
	clock: cesium	铯原子钟	An atomic clock using the properties of cesium.	利用铯特性的原子钟。
	clock: crystal	晶体钟，石英钟	A precision clock essentially consisting of a generator of constant FREQUENCY controlled by a resonator made of quartz crystal with suitable... more A precision clock essentially consisting of a generator of constant FREQUENCY controlled by a resonator made of quartz crystal with suitable methods for producing continuous ROTATION to operate time-indicating and related mechanisms. Also called quartz clock.	包含恒定频率发生器的精密时钟，该发生器由石英晶体谐振器控制，采用合适方法产生连续旋转以操作时间指示器。也称作 quartz clock（石英钟）。
	clock: quartz	石英钟	See CLOCK: CRYSTAL.	参见crystal clock（石英钟）。
	closed traverse	闭合导线	See TRAVERSE.	起始和终止位置在同一测站上，或在其相对位置由其他测量确定的测站上的导线。
	close pack ice	密集冰	PACK ICE composed of FLOES mostly in contact, such that NAVIGATION becomes difficult even for specially constructed vessels. ICE CONCENTRATI... more PACK ICE composed of FLOES mostly in contact, such that NAVIGATION becomes difficult even for specially constructed vessels. ICE CONCENTRATION 7/10th to 9/10th.	由几乎连接起来的浮冰所形成的冰群，这种情况下即使是特殊船舶也难以航行。密集度在7/10至9/10之间。
	closing error	闭合差	See ERROR OF CLOSURE.	参见error of closure（闭合差）。
	closing line	封闭线	A line that divides the internal waters and territorial seas of a coastal State or the archipelagic waters of an archipelagic State.	划分一个沿海国家的领海和内水的线；或确定群岛国家的群岛水域的线。
	closing the horizon	水平角闭合	See HORIZON.	在一个测站上绕其一整圈观测一系列角度，当观测到最后一个角度时，称水平角闭合。亦可见error closure of horizon（平面闭合差）。
	closure: error of	NULL	See ERROR OF CLOSURE.	NULL
	closure of triangle	三角形闭合差	See ERROR OF CLOSURE OF TRIANGLE.	参见error of closure of triangle（三角形闭合差）。
	cloud	云	Visible aggregate of minute particles of liquid water or ICE, or of both together, in suspension in the ATMOSPHERE. This aggregate may inclu... more Visible aggregate of minute particles of liquid water or ICE, or of both together, in suspension in the ATMOSPHERE. This aggregate may include larger particles of liquid water or ICE, non-aqueous particles or solid particles, originating for example from industrial gases, smoke or DUST.	悬浮在大气中的由微小水滴或冰晶（或两者一起）组成的可见聚合体。这种聚合体可包含较大的水滴或冰晶、非水颗粒或液态颗粒，例如来源于工业气体、烟雾或灰尘。
	cloud amount	云量	The fraction of the sky covered by the CLOUDS of a certain genus, certain species, certain variety, certain layer, or of a certain combinati... more The fraction of the sky covered by the CLOUDS of a certain genus, certain species, certain variety, certain layer, or of a certain combination of CLOUDS. Also called partial cloud amount. See CLOUD GENERA.	一些云属、云类、云样、云层或其组合遮蔽天空的比例。参见cloud genera（云属）。
	cloud classification	云分类	System of distinguishing and grouping CLOUDS according to one or more of the following criteria: a) appearance, b) process of formation, ... more System of distinguishing and grouping CLOUDS according to one or more of the following criteria: a) appearance, b) process of formation, c) common HEIGHT, d) particulate composition.	根据以下判定条件对云进行系统识别和分组： a) 外形；b) 形成过程；c) 常见高度；d) 颗粒组成。
	cloud genera	云属	Main characteristic mutually exclusive forms of CLOUDS, constituting the basis of the CLOUD CLASSIFICATION included in the International Clo... more Main characteristic mutually exclusive forms of CLOUDS, constituting the basis of the CLOUD CLASSIFICATION included in the International Cloud Atlas, 1956. The cloud genera are ten in number: cirrus, cirrocumulus, cirrostratus, altocumulus, altostratus, nimbostratus, stratocumulus, stratus, cumulus, cumulonimbus.	主要特征不同的各种云状，是云分类的基础，载于1956年出版的国际云图中。云属有10种，分别是：卷云、卷层云、卷积云、积云、高层云、雨层云、层积云、层云、积云、积雨云。
	clutter	杂乱回波；杂乱	Confused unwanted ECHOES on a radar display.	1.在雷达显示器上显示的杂乱的干扰回波。 2.ECDIS显示器或海图上易降低易读性的过量信息或噪声数据。
	coast	沿岸航行	The edge or margin of the LAND next to the SEA; the SEASHORE. Sometimes defined as the meeting of the LAND and SEA considered as the BOUNDAR... more The edge or margin of the LAND next to the SEA; the SEASHORE. Sometimes defined as the meeting of the LAND and SEA considered as the BOUNDARY of the LAND.	沿着或靠近海岸线航行。
	coast	沿岸航行	(v.t.). To sail along or near a COAST.	沿着或靠近海岸线航行。
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