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terreplein
Terreplein, or terre-plein — in fortifications is the top, platform, or horizontal surface, of a rampart, on which cannon are placed.〔''Webster's International Dictionary of the English Language'', Vol 2, 1895〕 In Martello towers, the roof or ''terreplein'' was sometimes surmounted with one or two cannon on a gun platform with a central pivot that enabled the guns to rotate up to 360 degrees.
In civil engineering works, a ''terreplein'' is an embankment of earth with a broad level top, which is sometimes excavated to form a continuation of an elevated canal across a valley.〔
== Notes and references ==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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