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	Term	术语	Definition	定义
	sky-wave correction	天波校正	The CORRECTION to be applied to the time difference reading of received SKY WAVES to convert it to an equivalent GROUND WAVE reading.	加在天波接收时间差上的校正。即把天波接收信号读数转变为等值的地波读数的校正。
	slack tide	平潮	See SLACK WATER.	潮流速度非常弱或等于零时的间隙；一般指落潮流和涨潮流之间的逆转期。
	slack water	憩流，滞水	The interval when the SPEED of the TIDAL CURRENT is very weak or zero; usually refers to the period of reversal between EBB and FLOOD curren... more The interval when the SPEED of the TIDAL CURRENT is very weak or zero; usually refers to the period of reversal between EBB and FLOOD currents. Also called slack tide.	潮流速度非常弱或等于零时的间隙；一般指落潮流和涨潮流之间的逆转期。亦称slack tide。
	slant distance	斜距	The straight-line distance from one point to another, as contrasted with GROUND DISTANCE. This expression is customarily used only when the ... more The straight-line distance from one point to another, as contrasted with GROUND DISTANCE. This expression is customarily used only when the straight line connecting the two points lies above the surface of the EARTH. Also called slant range.	与地面距离不同，指空间自一点到另一点的直线距离。本术语习惯上只用于地球表面上方连接两点的直线�... more 与地面距离不同，指空间自一点到另一点的直线距离。本术语习惯上只用于地球表面上方连接两点的直线。亦称slant range。
	slant range	斜距	See SLANT DISTANCE.	与地面距离不同，指空间自一点到另一点的直线距离。本术语习惯上只用于地球表面上方连接两点的直线�... more 与地面距离不同，指空间自一点到另一点的直线距离。本术语习惯上只用于地球表面上方连接两点的直线。
	slave	副台	A SLAVE STATION.	在无线电导航系统中，从主台接收的信号所控制或触发的发射台。
	slave station	副台	In a radio navigation system, the transmitting station controlled or triggered by the SIGNAL received from the MASTER STATION. Often shorten... more In a radio navigation system, the transmitting station controlled or triggered by the SIGNAL received from the MASTER STATION. Often shortened to slave.	在无线电导航系统中，从主台接收的信号所控制或触发的发射台。
	slide: dark	遮光板	A thin PLATE (usually metal or fibre, rigid or flexible) which, after insertion in a camera magazine, renders it light-tight.	安放在摄影机暗盒中，使之避光的薄板（通常是金属或纤维制成，刚性或柔性）。
	slide (or sliding) rule	计算尺，滑尺	A device used for performing rapid computations involving multiplication, division, proportion, roots, and powers. It has a body like a ru... more A device used for performing rapid computations involving multiplication, division, proportion, roots, and powers. It has a body like a ruler, but with a sliding section. Both body and sliding section are graduated with numbers according to LOGARITHMIC SCALES.	用于进行乘、除、比例、开方、乘方速算的装置。它具有象尺子一样的主体，并附带着滑动部分。主体和�... more 用于进行乘、除、比例、开方、乘方速算的装置。它具有象尺子一样的主体，并附带着滑动部分。主体和滑动部分按照对数比例刻有数值。
	slime	粘泥，粘质物	Soft, fine, oozy MUD or other substance of similar consistency.	软细淤泥或相似粘度的其它物质。
	slip	港池，两码头间的水区，船台	See DOCK.	两突堤间的空间，亦称slip。
	slipway	滑船台	The prepared and usually reinforced inclined surface on which keel- and bilge-blocks are laid for supporting a vessel under construction.	特制和装修的斜面，在上面可安放艇架和艇座，以便支撑船体。
	slope	倾斜，斜坡；斜度	The deepening SEAFLOOR out from the SHELF EDGE to the upper limit of the CONTINENTAL RISE, or the point where there is a general decrease in... more The deepening SEAFLOOR out from the SHELF EDGE to the upper limit of the CONTINENTAL RISE, or the point where there is a general decrease in steepness.	指倾斜的表面或线条。相对于水平的倾斜程度，一般以比率表达。
	slope and height factor	斜高比	In the measurement of distances with Tellurometer, a factor to be reckoned when reducing distances to the SPHEROID. It takes into account ... more In the measurement of distances with Tellurometer, a factor to be reckoned when reducing distances to the SPHEROID. It takes into account the mean HEIGHT of the stations (master and remote units) and the SLOPE of the line.	在微波测距仪量测距离中，将距离化算到椭球体上时需要计算的系数。该系数顾及了测站（主、副单位）�... more 在微波测距仪量测距离中，将距离化算到椭球体上时需要计算的系数。该系数顾及了测站（主、副单位）平均高度和测边的斜度。
	slope angle	斜角	The angle between a SLOPE and the horizontal.	斜面与水平面的夹角。
	slope correction (tape)	NULL	See TAPE: GRADE CORRECTION.	NULL
	slotted-template triangulation	切缝模片辐射三角测量	In PHOTOGRAMMETRY, a graphical RADIAL TRIANGULATION using slotted TEMPLATES.	在摄影测量中，使用切缝模片进行图解辐射三角测量。
	slough	泥坑，泥沼，沼泽地	A minor marshland or tidal WATERWAY which usually connects other tidal areas; often more or less equivalent to a BAYOU. Quagmire, SWAMP, mir... more A minor marshland or tidal WATERWAY which usually connects other tidal areas; often more or less equivalent to a BAYOU. Quagmire, SWAMP, miry place.	小块沼地或经常连接其它有潮区域的潮汐水道；多少相当于长沼。湿沼泽地，沼泽地，泥泞处。
	sludge	软冰	Spongy whitish ice lumps, a few centimetres across; they consist of SLUSH, of snow slush and sometimes of spongy ice lumps formed on the B... more Spongy whitish ice lumps, a few centimetres across; they consist of SLUSH, of snow slush and sometimes of spongy ice lumps formed on the BOTTOM of the SEA and emerging on the surface.	软性稍白的冰块，一般几厘米大小，由泥冰或雪冰泥组成。有时雪冰块在海底形成并露出水面。
	sluice	闸门，水闸	Sliding gate or other contrivance for changing the level of a body of water by controlling FLOW into or out of it.	通过调整滑动的门板或其它装置，控制水流进出，用以改变水体水位。
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