| 单词 | by the mark |
| 释义 | > as lemmasby the mark a. A piece of material or a knot used to indicate a depth (usually in fathoms) on a sounding line. Chiefly in by the mark followed by a number, as called out during soundings.mark twain: see twain adj. 2c. ΚΠ 1769 W. Falconer Universal Dict. Marine at Sounding If the mark of 5 fathoms is close to the surface of the water, he calls ‘By the mark five!’ 1825 E. Fitzball Pilot i. iv. 15 Pilot. Stand by your sheets; heave away that lead! Tom. By the mark seven! c1860 H. Stuart Novices or Young Seaman's Catech. (rev. ed.) 43 Suppose you had five fathoms of water, what soundings would you call? By the mark five. 1908 Man. Seamanship (1915) I. iv. 131 If the depth of water obtained corresponds with any of the marks on the line, the leadsman calls ‘By the mark 5’, ‘By the mark 7’, &c. 1961 F. H. Burgess Dict. Sailing 42 By the mark. The phrase prefixed to a sounding, as reported by the leadsman when one of the marks on the line is at water level while the line is vertical. < as lemmas |
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