fthm

• 长度单位，等于六英尺，主要用于测量水深；也指体积单位，等于六立方英尺，用于矿业中测量矿石体积。

A noun referring to a unit of length equal to six feet, primarily used to measure the depth of water; also a unit of volume equal to six cubic feet, used in mining to measure bodies of ore.

1. Unit of depthB1formaltechnical

   A linear unit of measurement equal to 6 feet, used primarily for measuring water depth.

   英寻

   • The ship sank in 20 fthm of water.
   • The diver descended to a depth of 15 fthm.
   • They marked the channel at 8 fthm on the chart.

   同义词fathom

2. Unit of volume (mining)C1formaltechnical

   A unit of volume equal to 6 cubic feet, used in mining to measure bodies of ore.

   fathom（体积单位）

   • The vein contained over 100 fthm of ore.
   • Miners calculated the yield at 50 fthm per shift.
   • The survey reported a promising 30 fthm deposit.