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girder 音标拼音: [g'ɚdɚ]
n. 梁 梁 girder n 1: a beam made usually of steel; a main support in a structureGirder \ Gird" er\, n. [ From { Gird} to sneer at.] One who girds; a satirist. [ 1913 Webster]
Girder \ Gird" er\, n. [ From { Gird} to encircle.] [ 1913 Webster] 1. One who, or that which, girds. [ 1913 Webster] 2. ( Arch. & Engin.) A main beam; a stright, horizontal beam to span an opening or carry weight, such as ends of floor beams, etc.; hence, a framed or built- up member discharging the same office, technically called a compound girder. See Illusts. of { Frame}, and { Doubleframed floor}, under { Double}. [ 1913 Webster] { Bowstring girder}, { Box girder}, etc. See under { Bowstring}, { Box}, etc. { Girder bridge}. See under { Bridge}. { Lattice girder}, a girder consisting of longitudinal bars united by diagonal crossing bars. { Half- lattice girder}, a girder consisting of horizontal upper and lower bars connected by a series of diagonal bars sloping alternately in opposite directions so as to divide the space between the bars into a series of triangles. -- Knight. { Sandwich girder}, a girder consisting of two parallel wooden beams, between which is an iron plate, the whole clamped together by iron bolts. [ 1913 Webster]
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