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Where the available rolled beams are not sufficient to carry the load, plate girders have to be used. 如果现有的轧制梁不足以承担呵载,就不许使用板梁。
She performed on the balance beam with much grace. 她在平衡木上表演得非常优美。
Chock the barrel up or else it will roll over. 用楔子塞住圆桶,不然它会滚过去。
The beam of the searchlight pierced the darkness. 探照灯的光柱射入黑暗中。
He waited and waited till the clouds rolled by. 他等了又等，直到时机到来。
The sun burst through after the clouds rolled away. 乌云滚滚而去后，太阳破云而出。
His answer was right on the beam. 他的答案完全正确。
The sweat rolled off in great drops. 汗水一大滴一大滴地流下来。
The slow steady roll of the ship made him sick. 轮船不停地缓慢摇晃使他感到不适。
The organ rolled out a stately melody. 风琴奏出庄严的乐曲。
The coin rolled underneath the piano. 硬币滚到钢琴的下面了。
He struck the beam with his head. 他的头撞到梁上了。
The hoop rolled along the pavement. 圆环沿人行道滚动。
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。
Michael rolled up half an hour earlier. 万克尔提前半小时到达。
She rolled in for work twenty minutes late. 她懒懒散散地来上班，迟到了二十分钟。
She rolled the socks into a ball. 她把袜子卷成一团。
Mind you don't knock your head (on this low beam). 小心，别(让这根低梁)撞著头。
One of the dice has rolled under the table. 有一粒骰子滚到桌子下面去了。