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	Term	术语	Definition	定义
	depth: standard	标准水深	A DEPTH below the sea surface at which water properties should be measured and reported, according to the proposal by the International Asso... more A DEPTH below the sea surface at which water properties should be measured and reported, according to the proposal by the International Association of Physical Oceanography in 1936.	海面以下某一深度。根据国际物理海洋学协会1936年给出的建议，应该测量并报告该深度处的海水性质。
	depth: thermometric	测温深度	The DEPTH, in METRES, at which paired protected and unprotected THERMOMETERS attached to a NANSEN BOTTLE are reversed. The difference betwee... more The DEPTH, in METRES, at which paired protected and unprotected THERMOMETERS attached to a NANSEN BOTTLE are reversed. The difference between the corrected readings of the 2 THERMOMETERS represents the effect of the HYDROSTATIC PRESSURE at the DEPTH of reversal. This DEPTH may then be determined by formula or from a DEPTH ANOMALY GRAPH. DEPTHS obtained by this means are of greatest value when a WIRE ANGLE occurs.	装在南森采水器上的一对闭端颠倒温度计和开端颠倒温度计，在完成颠倒动作时所处的深度称为测温深度�... more 装在南森采水器上的一对闭端颠倒温度计和开端颠倒温度计，在完成颠倒动作时所处的深度称为测温深度。而温度计订正后的读数差为该深度的静水压系数。然后利用公式计算出该深度或绘制深度异常图。如钢丝绳出现倾角时，用这种方法所求得的深度为最大值。
	depth anomaly graph	深度异常图	A graph constructed to determine the difference between the computed or THERMOMETRIC DEPTH and the ideal or assumed DEPTH of reversal of THE... more A graph constructed to determine the difference between the computed or THERMOMETRIC DEPTH and the ideal or assumed DEPTH of reversal of THERMOMETERS attached to a NANSEN BOTTLE.	为确定计算深度或测深温度和南森采水器上颠倒温度计所测的理想深度或假设深度之差而编制的一种图解�... more 为确定计算深度或测深温度和南森采水器上颠倒温度计所测的理想深度或假设深度之差而编制的一种图解图。
	depth contour	等深线	See DEPTH CURVE.	参见depth curve（等深线）。
	depth curve	等深线	A depth curve is a line connecting points of equal water depth which is sometimes significantly displaced outside of soundings, symbols, and... more A depth curve is a line connecting points of equal water depth which is sometimes significantly displaced outside of soundings, symbols, and other chart detail for clarity as well as generalization. Depth curves therefore often represent an approximate location of the line of equal depth as related to the surveyed line delineated on the source.	联接水深相同点的线。由于制图综合的运用，等深线有时候会移位到水深点、符号或其它图上细节要素的�... more 联接水深相同点的线。由于制图综合的运用，等深线有时候会移位到水深点、符号或其它图上细节要素的外部。相对于原始测量划定的线，等深线通常表示水深相同点的连线的概略位置。
	depth differences	深度差	Those differences in DEPTH which may be encountered in HYDROGRAPHIC SURVEYS at crossing of CROSS LINES and principal LINES OF SOUNDINGS.	指海道测量中检查线上水深与主测线上水深的差值。
	depth finder	测深仪，深度探测仪	An instrument for the measurement of the DEPTH of water, particularly an ECHO SOUNDER.	一种用于水深测量的仪器，特别是指回声测深仪。
	depth gauge	水深计，测深量尺	See GAUGE.	表示水深测量仪器的通用术语，特别是指采用水对弹簧压力或管内空气压缩程度测得水深的仪器。
	depth ice	底冰	See ANCHOR ICE.	参见anchor ice（底冰）。
	depth of the sea	海洋深度	The vertical distance from the water surface to the sea bottom.	海平面到海底的垂直距离。
	derelict	遗弃物，遗弃船	Any property abandoned at SEA, often of sufficient size as to constitute a menace to NAVIGATION; especially an abandoned vessel. See WRECK.	任何被抛弃在海上的物体，通常尺寸较大并对航行构成威胁；特别是废弃的船。参见wreck（沉船）。
	derrick	钻井	A tall pyramid of latticed steel mounted over a borehole.	安装在钻井上的高大锥形钢架。
	descending node	降交点	See NODE.	参见node（节点）。
	detached position	孤立位置点	See POSITION.	在海道测量中，用于指示礁石、浮标，浅滩或其它重要危险物、要素的最浅深度位置的词汇。
	detached sounding	孤立水深	See SOUNDING.	指那些位置经过精确测定的水深，包括浅谈的最小水深。参见detached position（孤立点）。
	detail(s)	细部，碎部，要素	In CARTOGRAPHY, the items or particulars of information (shown on a MAP by lines, SYMBOLS, and lettering) which, when considered as a whole,... more In CARTOGRAPHY, the items or particulars of information (shown on a MAP by lines, SYMBOLS, and lettering) which, when considered as a whole, furnish the comprehensive representation of the physical and cultural features of the EARTH's surface.	在制图中，用线划、符号和文字在图上所表示的资料细节。从整体上看，它为地球表面的自然要素和人文�... more 在制图中，用线划、符号和文字在图上所表示的资料细节。从整体上看，它为地球表面的自然要素和人文要素提供了全面的表示方法。
	detection threshold	探测范围	The lowest or highest level of a parameter above or below which sensing equipment can detect the parameter.	探测设备可能探测的某个参数的上限和下限。
	detritus	岩屑，碎屑，腐质	In GEOLOGY, material removed by disintegration and other processes from the surface of ROCKS. There is a general tendence to use debris. In ... more In GEOLOGY, material removed by disintegration and other processes from the surface of ROCKS. There is a general tendence to use debris. In MARINE BIOLOGY, suspended matter of organic origin permanently incapable of reproduction organic detritus may often 'collect' a considerable amount of inorganic material.	在地质学中，由风化作用及其它作用从岩石表面分离下来的物质。一般倾向于使用debris(岩屑)一词。在海�... more 在地质学中，由风化作用及其它作用从岩石表面分离下来的物质。一般倾向于使用debris(岩屑)一词。在海洋生物学中，指那些永不再生的悬浮原始有机物，这种有机物腐质往往可能聚合有大量的无机物。
	deviation	自差	See DEVIATION: MAGNETIC.	参见magnetic deviation（磁自差）。
	deviation: constant	（罗经的）恒定自差	DEVIATION which is the same on any HEADING, which may result from certain arrangements of asymmetrical horizontal SOFT IRON.	指在船首任何方向罗经自差均相同，这可能是由于非对称的水平放置软铁造成的。
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