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Term | 术语 | Definition | 定义 |
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submarine sound signal | 水中音响信号 | See SOUND SIGNAL. | 通过水传播的音响信号。 |
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submarine spring | 海底(源)泉 | See SPRING. | 大潮。水或其它物质从地面自然涌出,发生在海底者称submarine spring(海底泉)。 |
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submarine transit lane | 海底运输通道 | A LANE where submarines may NAVIGATE under water or at the surface. | 潜艇可以在其水下或表面通航的一个通道。 |
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submarine valley | 海底山谷 | See VALLEY. | 一种较浅、坡度变化较缓的宽凹陷地,其底部逐步向下延伸。本词用于描述广义上的无峡谷特性地形。 |
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submarine volcano | 海底火山 | A seabed volcano, submerged at the chart sounding datum, which may or may not be active. | 淹没在海图基准面以下的海底火山,可以是活火山,也可以不是活火山。 |
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submerged | 在海中的,海面下的,沉(浸,潜,淹)没的 | (adj.). Under water; not showing above water. The opposite is UNCOVERED. | 水下的;不露出水面的。与其相反的是uncovered。 |
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submerged rock | 暗礁 | A rock covered at the chart sounding datum and considered to be potentially dangerous to navigation. | 淹没在海图基准面下,并认为对航行有潜在危险的礁石。 |
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subordinate station | 附属(验潮)站 | See STATION. | 根据参考站预报经改正确定其潮汐或潮流预报的地点之一。完成短周期观测并经过与参考站同步观测相比... more |
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subpermanent magnetism | 半永久磁性;次恒磁 | See MAGNETISM: PERMANENT. | 指磁铁除非遭受消磁处理,否则它的磁性能保持很长时期而不会显著减弱,因为这种磁性的消散缓慢,有... more |
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subplan | 辅助图,附图 | An INSET on a SURVEY SHEET used to extend the survey coverage shown on the sheet, or to show small congested areas at enlarged SCALES. | 海量原图上的附图,用于在图幅上扩展表示测量范围或以放大比例尺表示小块稠密地区。 |
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sub-point | 下点,投影点,星下点 | That point on the surface of the EARTH at which a particular CELESTIAL BODY is in the ZENITH at a specified TIME. Also called 'geographical ... more | 在特定时刻,特定的天体位于天顶时的地球表面点。亦称geographical position of a celestial body。加拿大术语为sub... more |
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sub-sea completion | 海底完井 | See WELL: PRODUCTION. | 生产石油或天然气的钻井,它由一海床阀门或管道装置覆盖,以控制开采。亦见sub-sea completion(海底完井... more |
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subsidiary station | 中间点 | See STATION. | 为克服测量过程中某些局部障碍而设置的点,该点不能为测站点确定位置数据。 |
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subsoil | 底土,下层土 | All naturally occurring matter lying beneath the sea-bed or deep ocean floor. | 海床或深海底以下的所有自然存在的物质。 |
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subsolar point | 日下点 | The GEOGRAPHICAL POSITION of the SUN; that point on the EARTH at which the SUN is in the ZENITH at a specified TIME. | 太阳的地理位置。在特定时刻,太阳位于地球上该点天顶。 |
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subsonic | 亚声(速)的,亚音(速)的 | (adj.). Designating or of SPEEDS that are less than that of SOUND. | 速率比声速小的。 |
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substellar point | 星下点 | The GEOGRAPHICAL POSITION of a STAR; that point on the surface of the EARTH at which the STAR is in the ZENITH at a specified TIME. Also cal... more | 星球的地理位置;在特定时刻,星球位于地球表面该点的天顶。亦称subastral point。 |
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substitute centre | 替代中心 | A point which, because of its ease of identification on overlapping PHOTOGRAPHS, is used instead of the PRINCIPAL POINT as a RADIAL CENTRE... more | 用于替代像主点作为径向中心的点,该点在重叠像片上易于辨别。 |
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substitute map | 地图代用品,代用地图 | See MAP. | 当地图精度不能满足要求时,用一种快速复制的大面积覆盖航片,像片地图或镶嵌图,或临时地图或其它... more |
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subsurface current | 次表层流 | See CURRENT. | 通常在温跃层下流动的海流。这种海流一般流速较慢,流向通常与接近海面的海流不同。 |