Chinese English

Appearance

View mode
Number of cards in a row Here you can select the number of cards to be placed in a row for each of supported screen resolutions. Your current resolution is highlighted in this way.
	Large desktop
	Desktop
	Tablet
	Phone

Page size

Total record count: 6216.

Records per page

	Term	术语	Definition	定义
	distortion: lens	透镜畸变	See DISTORTION.	参见distortion（失真）。
	distortion: radial	径向畸变，辐射畸变	A lens aberration that is corrected on the PHOTOGRAPH by displacing the IMAGE along a radial line from the PRINCIPAL POINT.	通过沿像主点辐射线方向移动图像的方式在像片上改正的透镜像差。
	distortion of medium	介质畸变	Changes in the dimensions of SURVEYS or CHARTS due to expansion or contraction of the paper on which the SURVEY or CHART is drawn or printed... more Changes in the dimensions of SURVEYS or CHARTS due to expansion or contraction of the paper on which the SURVEY or CHART is drawn or printed. See also DIFFERENTIAL SHRINKAGE.	由于绘制或者印刷测量图或者海图所使用的纸张扩张或者收缩引起测量图或者海图形状的变化。亦可参见differential shrinkage（不均匀收缩）。
	distributary	支流，分流	A river branch which flows away from the main STREAM without returning to it, as in a DELTA.	河流的分支，从主流分出并且未返回主流，如在三角洲地区。
	diurnal aberration	周日光行差	See ABERRATION OF LIGHT.	参见aberration of light（光行差）。
	diurnal arc	周日弧	See ARC: ASTRONOMICAL.	参见astronomical arc（天文弧）。
	diurnal current	全日潮	See CURRENT.	潮汐的一种类型，一个潮汐日内只有一次涨潮和一次落潮。
	diurnal inequality	日潮不等	The difference between the HEIGHTS of the two HIGH TIDES (high water inequality) or the two LOW TIDES (low water inequality) during a TIDAL ... more The difference between the HEIGHTS of the two HIGH TIDES (high water inequality) or the two LOW TIDES (low water inequality) during a TIDAL DAY, or the difference in SPEED between the two FLOOD or the two EBB CURRENTS during a TIDAL DAY. The average diurnal inequality is called tropic high water inequality and tropic low water inequality when referred to the HIGH WATERS and LOW WATERS, respectively, of TROPIC TIDES. Mean diurnal high water inequality is half the average difference between the HEIGHTS of the two HIGH WATERS of each TIDAL DAY over a 19-year period. Mean diurnal low water inequality is half the average difference between the HEIGHTS of the two LOW WATERS for a similar period. Also called declinational inequality.	在一个潮汐日内，两个相邻高潮或者两个相邻低潮高度不等或者两次涨潮或者落潮速度不等的现象。当分别涉及回归潮的高潮和低潮时，则称为回归高潮不等和回归低潮不等。平均日高潮不等是19年每一个潮汐日内两次高潮高度差值平均值的一半。平均日低潮不等是19年每一个潮汐日内两次低潮高度差值平均值的... more 在一个潮汐日内，两个相邻高潮或者两个相邻低潮高度不等或者两次涨潮或者落潮速度不等的现象。当分别涉及回归潮的高潮和低潮时，则称为回归高潮不等和回归低潮不等。平均日高潮不等是19年每一个潮汐日内两次高潮高度差值平均值的一半。平均日低潮不等是19年每一个潮汐日内两次低潮高度差值平均值的一半。也称为declinational inequality（日潮不等）。
	diurnal motion	周日运动	The apparent daily motion of a celestial body.	天体的视日运动。
	diurnal parallax	周日视差	See PARALLAX.	从地心或者地面上一点观测到的星球视运动或者位置的差异。它随着星球的高度和与地球的距离变化而变化。亦称为geocentric parallax（地心视差）。
	diurnal range	日潮差	See RANGE.	平均高高潮和平均低低潮高度之差。也称为great diurnal range（最大平均日潮差）。
	diurnal tide	日潮，日周潮	See TIDE.	每一个潮汐日潮汐周期由一个高潮和一个低潮组成的潮汐。在英国术语中也称为single day tide（全日潮）。
	diver	潜水员	A person skilled in the practice of diving.	熟练潜水的人。
	divergence	辐散，散度	In OCEANOGRAPHY, a horizontal FLOW of water, in different directions, from a common centre or zone; often associated with UPWELLING.	在海洋学中，指海水从共同的中心或者区域向各个不同方向水平流动的现象；通常与上升流相关。
	divider(s)	分规，两脚规	Measuring COMPASSES having both legs pointed, used principally for measuring distances and COORDINATES.	一种测量圆规，有两条尖腿，主要用于测量距离和坐标。
	dock	船坞	The space between two piers. Also called a SLIP.	两个坞墩之间的空间部分。
	dock: dry	干船坞	An artificial BASIN fitted with a gate or CAISSON, into which vessels can be floated and the water pumped out to expose the vessel's bottom.... more An artificial BASIN fitted with a gate or CAISSON, into which vessels can be floated and the water pumped out to expose the vessel's bottom. Also called graving dock.	一种人工建筑物，具有一个门或者修船箱。船舶通过坞门进入干船坞后可以漂浮起来，然后将水排出船舶底部就会暴露出来。
	dock: floating	浮船坞	A form of DRY DOCK consisting of a floating structure of one or more sections which can be partly submerged by controlled flooding to receiv... more A form of DRY DOCK consisting of a floating structure of one or more sections which can be partly submerged by controlled flooding to receive a vessel, then raised by pumping out the water so that the vessel's bottom can be exposed.	干船坞的一种。它由一节或者多节漂浮结构组成。可以控制向浮船坞舱内灌水，使浮船坞部分下沉来接收船只，然后将浮船坞舱内水抽出使浮船坞上升，这样待修船舶底部就可露出。
	dock: graving	干船坞	See DOCK: DRY.	参见dry dock（干船坞）。
	dock: wet	湿船坞	A DOCK in which water can be maintained at any level by closing a gate when the water is at the desired level.	可以使坞内的水保持在任何水位的一种船坞。其方法是：在坞内水达到理想水位时，关闭闸门。
There are no records to display