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我厂生产的MDQ15050型门式斗轮堆取料机的固定梁和活动梁,属于大型简支桥式梁.其截面尺寸见图1、图2.梁的跨距L_k为
I plant the MDQ15050-type gantry bucket wheel stacker reclaimer fixed beam and movable beam, are large-scale simply supported beam.The cross-sectional dimensions shown in Figure 1, Figure 2. Beam span L_k is