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- The upper and lower chords of the planar truss are in compression.The compression force is counteracted by the tension force provided by the perimeter beam at the top of columns. 从受力上看属于受压壳,平面桁架的上下弦杆均受压,压力由柱顶环梁的拉力来平衡。
- An alternative system for multi-storey fiats and similar large buildings is to erect a framework of load-bearing precast reinforced concrete horizontal perimeter beam units and vertical mullion units. 对于多层公寓或类似的大型建筑来说,另一种选择就是建造一个承重的水平圈梁和竖框预制钢筋混凝土构件框架。
- Guards patrolled the perimeter of the airfield. 卫兵沿机场四周巡逻。
- She performed on the balance beam with much grace. 她在平衡木上表演得非常优美。
- The perimeter of the airfield is protected by guard-dogs. 机场外的环形防卫圈由警犬保卫着。
- The beam of the searchlight pierced the darkness. 探照灯的光柱射入黑暗中。
- His answer was right on the beam. 他的答案完全正确。
- The barbed wire fence round the perimeter discouraged intruders. 周围有铁丝网阻止了外人闯入。
- He struck the beam with his head. 他的头撞到梁上了。
- Guards had been posted at several points around the perimeter. 在环形防线上已布置了几处岗哨。
- The beam has a thickness of 3 inches. 这根梁厚3英寸。
- Never heard of her. You're off the beam. 我从来没有听说过这个人,你搞错了吧。
- Mind you don't knock your head (on this low beam). 小心,别(让这根低梁)撞著头。
- Sighted land off the starboard beam. 转向右舷方向便望见了陆地
- The gymnast poised herself on the balance beam. 体操运动员在平衡木上保持平衡。
- The load on that beam is more than it will bear. 那根梁上的载重超过了它所能承受的量。
- He greeted me with a beam of joy. 他笑容满面地迎接我。
- A fence marked the perimeter of the field. 一道篱笆标明了那块田地的周界。
- Your calculation is way off beam. 你的计算大错特错。
- The unemployed worker was on his beam ends with rheumatism. 这个失业工人患了风湿病,经济十分困难。