... 3.7 肋高 rib height 3.8 肋间距 rib spacing 钢筋的公称直径范围为5mm～14mm，本标准推荐的钢筋公称直径为5～12mm。 ...
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给出了加劲肋间距、长螺杆连接件的设计控制条件。
The distances between ribbed panels and the design control conditions of long screw connectors were suggested.
本实验选取航空发动机涡轮叶片中段内部冷却通道为研究对象，对不同肋间距的横肋变截面U型通道的换热特性进行了研究。
The experiment has studied the heat transfer characteristic inside U shaped variable cross-section channels with different rib pitches, The channel is the middle part of a gas turbine blade.
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