Term 术语 Definition 定义
shading
明暗,加暗,加阴影
Gradations of light, colour, or thickness of lines; or indications of shadows. Shading of lines is sometimes used on CHARTS to produce the e... more
Gradations of light, colour, or thickness of lines; or indications of shadows. Shading of lines is sometimes used on CHARTS to produce the effect of HEIGHT or DEPTH. See also HILL SHADING.
各种层次的光线、色调或线划粗度与阴影的显示。线条的加暗有时用于海图上,以产生高度或深度的层次... more
各种层次的光线、色调或线划粗度与阴影的显示。线条的加暗有时用于海图上,以产生高度或深度的层次效应。亦见hill shading(山形晕渲法 )。
shadow pin
投影针;(日晷)指时针
A small rod or pin used to cast a shadow on an instrument, such as a MAGNETIC COMPASS or SUN COM­PASS, to determine the direction of the lu... more
A small rod or pin used to cast a shadow on an instrument, such as a MAGNETIC COMPASS or SUN COM­PASS, to determine the direction of the luminary; a GNOMON.
用于将阴影投射到仪器上的小棒或针,可以测定发光方向。一种日晷指时针。
shadow zone
静区,盲区
A region into which very little sound energy penetrates.
声能到达很微弱的区域。
shallow
浅滩,浅水
(adj.). Having little DEPTH.
由松散物质组成,水深相对较浅的区域。对水面航行或许有危害。
shallow
浅滩,浅水
(n.). An area composed of unconsolidated material where the DEPTH of water is relatively slight. It may be a hazard to SURFACE NAVIGATION.
由松散物质组成,水深相对较浅的区域。对水面航行或许有危害。
shallows
浅滩
An indefinite term applied to expanses of SHOAL or SHALLOW WATER.
一个不明确的术语,指浅水和滩涂的延伸。
shallow water
浅水
Commonly, water of such a DEPTH that SURFACE WAVES are noticeably affected by bottom topog­raphy. It is customary to consider water of DEPT... more
Commonly, water of such a DEPTH that SURFACE WAVES are noticeably affected by bottom topog­raphy. It is customary to consider water of DEPTHS less than half the surface WAVE LENGTH as shallow water.
一般指表层波浪极易受海底地形影响的水域。通常把深度小于浅层波长一半的水域称作浅水区。
shallow water constituent
浅水分潮
A short-period harmonic term introduced into the formula of ASTRONOMICAL TIDE con­stituents to take account of the change in the form of a ... more
A short-period harmonic term introduced into the formula of ASTRONOMICAL TIDE con­stituents to take account of the change in the form of a TIDE WAVE resulting from SHALLOW WATER conditi­ons. Shallow water constituents include OVERTIDES and COM­POUND TIDES. See HARMONIC CONSTITUENT.
考虑由浅水效应产生的潮波变化,在天文潮公式中引入的一个短周期调和项。浅水分潮包括倍潮和复合潮... more
考虑由浅水效应产生的潮波变化,在天文潮公式中引入的一个短周期调和项。浅水分潮包括倍潮和复合潮。参见harmonic constituent(调和分潮)。
shallow water corrections
浅水分潮改正数
Quantities to be applied to a TIDE PREDICTION to correct for the QUARTER DIURNAL TIDES.
应用于潮汐预报中改正四分之一日潮的量。
shallow water tide(s)
浅水潮汐
See TIDE.
受浅水浪弯影响的天文潮汐。亦见quarter-diurnal tide(四分之一日潮)。
shallow water wave
浅水(潮)波
See WAVE: TRANSITIONAL WATER.
水中行进的重力波,此时水深小于1/2波长,大于1/25波长。常称为浅水波。
shear strength
抗剪(剪切)强度
The internal resistance of a body to shear stress.
物体对于剪切应力的内部抗力。
shelf
陆架,陆棚
Geologically an area adjacent to a continent or around an island and extending from the low-water line to the depth at which there is usuall... more
Geologically an area adjacent to a continent or around an island and extending from the low-water line to the depth at which there is usually a marked incr­ease of slope towards greater depth. See also CONTI­NEN­TAL SHELF.
地质上指邻接大陆或岛屿,自低潮线向外延伸至坡度明显变陡处的区域。
shelf break
大陆架转折
See SHELF EDGE.
大陆架或岛屿陆架外缘坡度显著增大的边沿线。
shelf edge (or shelf break)
大陆架外缘
The line along which there is a marked increase of SLOPE at the seaward margin of a CONTINENTAL (or ISLAND) SHELF.
大陆架或岛屿陆架外缘坡度显著增大的边沿线。
shell
甲壳;贝壳
The hard outside covering of an animal. Part of the ocean bed is composed of numerous shells of marine animals.
动物覆盖躯体的坚硬表面。由众多海洋生物甲壳组成的海床区域。
shelving
缓坡
A gently sloping area.
坡度缓和的斜面。
shimmer
闪烁
Apparent fluttering of objects at the EARTH's surface, when they are viewed in an almost horizontal direction above strongly heated surfaces... more
Apparent fluttering of objects at the EARTH's surface, when they are viewed in an almost horizontal direction above strongly heated surfaces.
地球表面物体的视颤动。这种现象发生在强热地面,在与受热表面大致成水平方向注视时可见。
shingle
粗砾
Rounded, often flat waterworn rock fragments larger than approximately 16 millimetres.
圆形的、被水磨光的岩石碎块,一般直径大于16毫米。
ship of opportunity
顺便(辅助)观测船
An expression designating ships of commercial lines employed in gathering oceanogra­phic DATA.
被指派在商业航线上收集海洋观测数据的船只。