要更换安全阀阀瓣，握住上部引导翼，旋下隔膜压力板上的螺丝。
To replace the relief valve disc, hold the upper guide fin and unscrew the diaphragm pressure plate.
组合梁是钢梁和其上混凝土翼板共同抗弯的一种构件。
The composite beam is a component comprised the steel beam and the concrete flange plate on the steel beam.
广州新白云机杨航站楼屋盖采用两个帽形冷弯型钢通过翼边板上纵向点焊形成组合箱形截面受弯构件。
A flexural member is composed of a couple cold formed steel hat sections by spot welding on the longitudinal lips used in the Guangzhou new Baiyun Airport Buildings.
当然，我进入的磨坊并没有如此喧闹，我只是偶尔听到那些闲置的翼板上的横木做几下摆动罢了，一切都是如此寂静。
In my mill, of course, there is no such uproar; nothing but the occasional shaking of the cross-pieces of the idle sails. Everything is still;
当然，我进入的磨坊并没有如此喧闹，我只是偶尔听到那些闲置的翼板上的横木做几下摆动罢了，一切都是如此寂静。
In my mill, of course, there is no such uproar; nothing but the occasional shaking of the cross-pieces of the idle sails. Everything is still;
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