| 释义 |
freeboard
free·board F0306500 (frē′bôrd′)n.1. The distance from the water line to the gunwales of an open boat or to the main deck of a decked vessel.2. The distance between normal water level and the top of a structure or mass that rises out of the water, such as a buoy, dam, or ice floe.
[Probably ultimately partial translation of Anglo-Norman franc bord, land claimed outside the fence of a park or forest : franc, free + bord, bort, border; see border.]freeboard (ˈfriːˌbɔːd) n (Nautical Terms) the space or distance between the deck of a vessel and the waterlinefree•board (ˈfriˌbɔrd, -ˌboʊrd)
n. 1. (on a cargo vessel) the distance between the uppermost deck considered fully watertight and the official load line. 2. the height of the watertight portion of a building or other construction above a given level of water. [1670–80] Translationsfreeboard
freeboard the space or distance between the deck of a vessel and the waterline freeboard[¦frē‚bȯrd] (analytical chemistry) The space provided above the resin bed in an ion-exchange column to allow for expansion of the bed during backwashing. (chemical engineering) In a fluidized-bed reactor, the space between the top of the reaction bed and the top of the reactor. (civil engineering) The height between normal water level and the crest of a dam or the top of a flume. (engineering) The vertical distance in a water tank between the maximum water level and the top of the tank. (naval architecture) The vertical distance from the intersection of the top of the freeboard deck amidships with the outer surface of the side plating to the upper edge of the summer load line, or in general terms, the distance from the waterline to the deck. freeboardIn a water tank, the vertical distance between the maximum water level and the top of the tank. |