Term 术语 Definition 定义
latitude line
纬度线
A LINE OF POSITION extending in a gene­rally east-west direc­tion.
向东西方向延伸的位置线。
latitude scale
纬线分划,纬度尺
See SCALE.
墨卡托投影海图东西图廓的细分。 直线比例尺的变形,因为纬度的1′非常接近于1海里。
lattice
位置线格网,图上格网
A pattern formed by two or more families of intersecting lines, such as HYPERBOLIC LINES OF POSITION or parts of circles, drawn on CHARTS, P... more
A pattern formed by two or more families of intersecting lines, such as HYPERBOLIC LINES OF POSITION or parts of circles, drawn on CHARTS, PLOTTING SHEETS or SOUNDING BOARDS.
两组或两组以上相交线所形成的图形,如绘于海图、海图作业纸上或测深图板上的双曲位置线或圆弧。
launch
汽艇
Large open or half decked boat.
大敞全开或半开甲板的小艇。
lava
熔岩,火山岩
The fluid or semi-fluid matter flowing from a volcano. The substance that results from the cooling of the molten ROCK. Part of the ocean bed... more
The fluid or semi-fluid matter flowing from a volcano. The substance that results from the cooling of the molten ROCK. Part of the ocean bed is composed of lava.
从火山流出的流质或半流质物质。由熔融岩石冷却形成的物质。洋底某些部分由熔岩组成。
layer
层,分层,地层
A single thickness, coat, fold or STRATUM.
1、在ECDIS中,作为整体来显示的一组相关信息。 2、一种单一厚度的层,褶皱或岩层。
layer depth
层深,温跃层顶深度,混合层深度
In OCEANOG­RAPHY, the thickness of the MIXED LAYER; or the DEPTH to the top of the THERMO­CLI­NE.
在海洋学中,指混合层的厚度,或者指到温跃层顶部的深度。
layer depth prediction
层深预报
Predetermining the DEPTH to the top of the THERMOCLINE over a given ocean area.
在某一给定洋区温跃层顶部深度的预报。
layering
分层
A method of emphasizing on a CHART diffe­rences in HEIGHT or DEPTH by use of varying tints. Also referred to as layer tinting.
在海图上使用不同的色彩强调不同的高度或者深度的方法。也可称之为layer tinting(分层设色)。
layer of no motion
无流层
A LAYER, assumed to be at rest at some DEPTH in the OCEAN.
在海洋中,在某一深度处假设处于静止状态的水层。
layer tinting
分层设色
See LAYERING.
参见layering(分层)。
lead (lèd)
铅;测锤;水砣;冰泾,人工水道;超前
A heavy, soft, malleable, bluish-grey metallic chemical element. Anything made of this metal, such as a WEIGHT for sounding DEPTHS of water.
一种重、软、可锻造的、蓝灰色化学元素。 也指任何由此金属制作的物体,例如测量水深用的重物(测锤... more
一种重、软、可锻造的、蓝灰色化学元素。 也指任何由此金属制作的物体,例如测量水深用的重物(测锤)。 穿越冰区的可航行通道。 某一个周期性运动在另一周期性运动超前的数量,以度表示。
lead (led)
铅;测锤;水砣;冰泾,人工水道;超前
A navigable PASSAGE through ICE. The amount one cyclic motion is ahead of another, expressed in DEGREES.
一种重、软、可锻造的、蓝灰色化学元素。 也指任何由此金属制作的物体,例如测量水深用的重物(测锤... more
一种重、软、可锻造的、蓝灰色化学元素。 也指任何由此金属制作的物体,例如测量水深用的重物(测锤)。 穿越冰区的可航行通道。 某一个周期性运动在另一周期性运动超前的数量,以度表示。
lead: deep sea
NULL
A heavy SOUNDING LEAD the WEIGHT of which may be varied from about 15 to over 50 kilos depending on the DEPTHS to be sounded. Also called di... more
A heavy SOUNDING LEAD the WEIGHT of which may be varied from about 15 to over 50 kilos depending on the DEPTHS to be sounded. Also called dipsey lead.
NULL
lead: drift
测走锚铅锤 ,漂测锤
SOUNDING LEAD dropped to BOTTOM, to indi­cate movement of a vessel.
投放到海底的测深锤,用来指示船舶的移动。
lead: fish
鱼形水砣,鱼形测锤
A fish-shaped SOUNDING LEAD which reduces to a minimum the INCLINATION of the wire when trailed, making unnecessary its removal from the wat... more
A fish-shaped SOUNDING LEAD which reduces to a minimum the INCLINATION of the wire when trailed, making unnecessary its removal from the water between SOUNDINGS.
一种鱼形测深锤,它可最大限度的减小测绳的倾斜,并且在测深过程中不需要从水中将其提出水面。
lead: hand
手锤,水砣、铅锤
A light SOUNDING LEAD (3 to 5 kilos) having usually a line of not more than 40 to 50 METRES.
轻型测深锤(重量约3-5千克,),通常绳长不超过40-50米。
lead: sounding
测深锤,水砣
A LEAD attached to a line used for measuring the DEPTH of water. Also called plummet.
用于探测水体深度的重锤。亦称plummet。
leader cable
引线电缆,主电缆,水底导航电缆
See CABLE.
位于海底用于输送电流的电缆,它可引导装配适当设备的船舶航行。
leading light(s)
引导灯桩,叠标灯桩
See LIGHT.
两个或者两个以上灯标联合组成叠标线用于导航。