Chinese English

助航标志，发射信号以表明某一区域的无线电信标。常称marker radiobeacon（无线电标志信标）或marker（信标器）。

A crumbling, earthy DEPOSIT, particularly one of CLAY mixed with SAND, lime, decomposed SHELLS, etc. Sometimes a LAYER of marl becomes quite compact. Part of the ocean bed is composed of marl.

粉碎的泥土状沉积物，特别是粘土与粉砂、碳酸盐、腐烂贝壳等的混合物。有时泥灰岩的一层会变得十分结实。部分洋底由泥灰岩组成。

A system introduced by Marsden early in the nineteenth century for showing the distribution of meteorological DATA on a CHART especially over the OCEANS. A Mercator map projection is used; the world between 90°N and 80°S being divided into Marsden 'squares' each of 10 degrees latitude by 10 degrees longitude. These squares are systematically numbered to indicate position. Each square may be divided into quarter squares, or into 100 one-degree subsquares numbered from 00 to 99 to give the position to the nearest degree.

马士顿第十九世纪引入的一种用于显示气象数据分布的海图，特别用于海洋气象数据。它采用墨卡托投影，将北纬90度至南纬80度之间区域按照经纬度10度X10度划分为马士顿方格。这些方格经过系统地编号以指示其位置。每个方格可以划分为四个方格，或划分为100个1度乘1度大小的小方格，编号依次是00至99，从而可以给出精度达到1°以内的位置。 

A mathematical representation, usually of a process, device, or concept, which per­mits mathematical manipula­tion of variables as a means to determine how the process, device, or concept would behave in various situations as e.g. the application of a specific simulation.

通常是有关方法、计划、设想的数学表达式，其通过可变量的数学运算来判定不同情况下这些方法、计划、设想的表现，例如特定模拟的应用。

In OCEANOGRAPHY, ROCK or SEDIMENT in which larger grains are embedded in a mass of smaller grains. In printing, a metal plate, usually of copper, for moulding the face of a type. In graphic arts, a mold in which type characters are cast in line-casting machines and foundry type.

1.在海洋学中，指在大量小颗粒中嵌入了大颗粒的岩石或沉积物。 2.在印刷术中，指模制铅字的金属板，通常为铜制。 3.在书画刻印领域，指由铸条机和铸字浇铸出字符的模具。 4.在ECDIS（电子海图显示和信息系统）中，指一组有规律间隔的位置。