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Term | 术语 | Definition | 定义 |
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slush | 冰泥，雪泥 | An accumulation of ice crystals which remain separate or only slightly frozen together. It forms a thin layer and gives the sea surface a gr... more | 冰晶体的积累，保持着分离状或轻微地结冰在一起。形成薄层并使海面呈浅灰或灰色。微风时表面没有波纹。 |
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small circle | 小圆 | See CIRCLE. | 不通过球心的平面与球面的交线。 |
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small correction | 小改正 | (British terminology). Minor corrections made to the chart plates. They have been discontinued since 1954. | （英国术语）对海图的局部更正，这种做法已在1954年停止。 |
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small craft chart | 小船海图 | Chart designed for easy reference and plotting in limited spaces. It portrays regular nautical chart detail and other specific details of sp... more | 设计用于在有限空间内便捷地查阅和标绘的海图。这种图描绘正常海图的内容，以及小船驾驶者关心的其它资料，如港口扩建；潮汐、潮流和天气信息；航道规则；海事单位位置；锚地；距离等。 |
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small diurnal range | 小周日潮差 | See RANGE. | 平均低高潮和平均高低潮间的高度差。 |
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small halo | 小晕（圈） | See HALO. | 白色，或接近白色，以发光体为中心视半径为22°的光圈。小晕在内边出现一淡红色的边，而在外边，偶尔出现一种淡紫色。环内边的天空比天空的其余部分明显更暗。 |
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small scale | 小比例尺 | See SCALE. | 缩小比率相对较大的比例尺。小比例尺海图覆盖区域大。与此相对的为大比例尺。 |
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small tropic range | 小回归潮差 | See RANGE. | 回归低高潮和回归高低潮间的高度差。 |
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smoothing | 平滑（值） | Averaging of data in space or time, designed to compensate for random errors or fluctuations of a scale smaller than that presumed signifi... more | 取空间或时间数据的平均值，设计用于补偿随机误差或某一范围内的波动，以消除小于特定问题假想有效值的波动。 |
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smooth sheet | 测深（成果）图，印刷（出版）原图 | (U.S. terminology). See FAIR CHART. | 指一种精密绘制的海道测量原图。它与外业测量原图不同，外业测量原图是外业期间，根据外业原始数据绘制的工作图，而成果图却是根据改正过的数据绘制的，它是相应部门对进行该项测量的永久性记录。亦称fair sheet。在美国的专业术语中称为smooth sheet 。 |
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snag | 隐树，沉木 | A tree or branch embedded in a river or lake bottom and not visible on the surface, forming thereby a hazard to boats. | 埋入江河湖泊底部的树木或枝叉，在水面看不到，因此对船艇航行形成危险。 |
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snapper | 采样器 | A bottom sampling device used to collect a small amount (less than 1 pint) of material from the ocean floor. It has metal jaws that snap shu... more | 用于采集洋底小量（小于1品脱）物质的底质取样装置。它有金属钳口，当装置触及海底时，钳口立刻关闭。亦称clamshell snapper。 |
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snapper: mud | 采泥器
| A small clamshell SNAPPER which is attached to the bottom of SOUNDING LEAD by means of a hole drilled in the LEAD. | 固定在测深锤底部钻孔内的小型抓斗采样器。 |
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snow | 雪 | PRECIPITATION of ice crystals, most of which are branched (sometimes starshaped). | 冰晶析出物，其中大部分是分叉的（有时是星形）。 |
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snowstorm | 暴风雪，雪暴 | STORM of blowing SNOW. | 猛烈吹刮降雪的风暴。 |
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soft iron | 软铁 | Iron or steel which is easily magnetized by induction, but loses its MAGNETISM when the MAGNETIC FIELD is removed. The opposite is HARD IRON... more | 受电感后易磁化的铁或钢，当磁场移去时它的磁性随即消失。与其相对的是hard iron（硬铁）。 |
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software | 软件 | All programs which can be used on a computer system. In particular the system software (i.e. the OPERATING SYSTEM) consists of all programs ... more | 能用于计算机系统的所有程序。计算机系统软件，包括计算机正常运行所需要的全部程序。应用软件包括为特定用户开发的全部程序。 |
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soil | 土地，地面；土壤，土质 | The EARTH or GROUND; the face or surface of the EARTH. The GROUND with respect to its composition, quality, etc., or as the source of vegeta... more | 陆地或土地；地球的表层或表面。有关土地的成分、性质等，或关于植被资源。 |
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solar apex | 太阳向点 | See APEX. | 太阳系作为一个整体运行所趋向的天球点。该点位于武仙星座。 |
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solar cell | 太阳能电池 | A cell using the solar light or other light energy for conversion into electric energy. | 将太阳光或其它光能转换为电能的电池。 |