| 释义 |
〔leadsman〕The person using the lead line in taking soundings.使用测深绳测量水深的人〔fathom〕A unit of length equal to 6 feet (1.83 meters), used principally in the measurement and specification of marine depths.英寸：长度单位，相当于6英尺(1.83米），主要用于测量水深〔lead〕A lead weight suspended by a line, used to make soundings.铅锤：用绳子悬挂一块铅制的重物，用来测量水深 |