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	Term	术语	Definition	定义
	covers and uncovers (or discovers)	干出	Expression intended to indicate an area of a REEF or other projection from the BOTTOM of a body of water which periodically extends above an... more Expression intended to indicate an area of a REEF or other projection from the BOTTOM of a body of water which periodically extends above and is submerged below the surface. Also referred to as dries or uncovers.	指礁石或水底其它突出部分周期性的露出水面和没入水下。亦称作dries 或uncovers。
	crab	偏航，偏差	The condition caused by failure to orient a CAMERA with respect to the TRACK of the airplane. In vertical PHOTOGRAPHY, crab is indicated b... more The condition caused by failure to orient a CAMERA with respect to the TRACK of the airplane. In vertical PHOTOGRAPHY, crab is indicated by the edges of the PHOTOGRAPHS not being parallel to the airbase lines.	由于根据飞机的航线对摄影机定向失败导致的情况。在垂直摄影中，偏航可通过影像边缘不平行于航空基�... more 由于根据飞机的航线对摄影机定向失败导致的情况。在垂直摄影中，偏航可通过影像边缘不平行于航空基线发现。
	crack	冰间裂缝，冰隙	Any fracture or RIFT in SEA ICE not sufficiently wide to be described as a LEAD.	其宽度不足以通航的海冰裂缝或空隙。
	crag	悬崖	A steep or precipitous rugged ROCK.	陡峭或险峻嶙峋的岩石。
	crater	火山口	Bowl-shaped cavity, at the SUMMIT or on the side of a volcano.	在火山山顶或一侧的碗状凹坑。
	creek	小溪；小湾	A comparatively narrow INLET, of fresh or salt water, which is tidal throughout its whole course. A small TRIBUTARY. A small, narrow BAY whi... more A comparatively narrow INLET, of fresh or salt water, which is tidal throughout its whole course. A small TRIBUTARY. A small, narrow BAY which extends farther inland than a COVE.	1.指较窄的淡水或咸水进水道，整个水道受潮汐的影响，或称小支流。 2.一种狭窄的小海湾，其从陆地伸�... more 1.指较窄的淡水或咸水进水道，整个水道受潮汐的影响，或称小支流。 2.一种狭窄的小海湾，其从陆地伸入的部分比海湾（cove)多。
	crescent	新月形的	(adj.). See PHASES OF THE MOON.	形容词。参见phase of the moon（月相）。
	crest	波峰；顶峰	The highest part of a WAVE, SWELL, RIDGE, etc.	波、涌、海底山脉的最高部分。
	crib	框形物；叠木框；木笼	A permanent marine structure usually designed to support or elevate pipelines; especially a structure enclosing a screening device at the of... more A permanent marine structure usually designed to support or elevate pipelines; especially a structure enclosing a screening device at the offshore end of a potable water intake pipe. The structure is commonly a heavy timber enclosure that has been sunken with rocks or other debris.	一种用于支撑或架高管道的永久海洋建造物；特别是饮用水进水管近海端的筛分设备装置。该结构通常是�... more 一种用于支撑或架高管道的永久海洋建造物；特别是饮用水进水管近海端的筛分设备装置。该结构通常是一种用石头和其它粗沙沉入海底的很重的木料箱。
	critical sounding	临界水深	The least depth in proximity to a known or potential navigational route.	接近某已知航道或潜在航道的最小水深。
	cross bearings	交叉方位线	Two or more BEARINGS used as intersecting LINES OF POSITION for fixing the POSITION of a craft.	作为相交位置线确定船位用的两个或者更多方位。
	cross hairs	NULL	See CROSS WIRES.	NULL
	crossing angle	交叉，交叉角	See ANGLE.	两个位置线交叉的角度。亦可称为angle of cut（交角）。
	crosslines	交叉线	Sounding lines that cross the main system of lines at either right angles or at an oblique angle to serve as a check on the accuracy of the ... more Sounding lines that cross the main system of lines at either right angles or at an oblique angle to serve as a check on the accuracy of the work.	垂直或斜穿过主深线线系统的测深线，用以检查测量工作的精度。
	cross lines of sounding	补充测深线，横交测深线	SOUNDING LINES run approximately at right angles to those of normal direction, frequently useful when examining SHOALS. Cross lines are also... more SOUNDING LINES run approximately at right angles to those of normal direction, frequently useful when examining SHOALS. Cross lines are also run after completing the main system of SOUNDING LINES, with the purpose of checking them.	基本垂直于正常测深线的测深线，在探测浅滩时经常使用。在完成主测深线测量后，还要测量检查线，主�... more 基本垂直于正常测深线的测深线，在探测浅滩时经常使用。在完成主测深线测量后，还要测量检查线，主要目的是进行水深检查。
	cross sea	交叉浪，混浪，恶浪	A series of WAVES or SWELL crossing another wave system at an angle.	以一定角度横穿其它波浪的一系列波浪或涌系。
	cross section lines of soundings	横断面测深线	SOUNDING LINES run in a SURVEY perpendicular to the FLOW of a STREAM and from BANK to BANK in a RIVER.	垂直于水流方向，或从河流一岸向另一岸施测的测深线。
	cross wind	横风	WIND which blows in a direction perpendicular to that of the motion of a moving object, relative to the EARTH's surface.	相对于地球表面，风向与物体运动方向垂直的风。
	cross wires (or hairs)	十字丝，十字线	Wires or etched lines, at right angles, held at the FOCAL PLANE of an astronomical or sighting TELESCOPE. See also RETICLE.	固定于天文望远镜或瞄准镜焦平面上相互垂直的金属线或蚀刻线。亦可参见reticle（十字线）。
	cruise line of sounding	巡航测深线	See TRACK LINE OF SOUNDING.	参见track line of sounding（测深线）。
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