... 留下很窄缝 With Only Narrow Slits 窄缝式挑坎 slit-type bucket ; type bucket 切缝窄 Narrow kerf width ...
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design of slit-type bucket 窄缝挑坎设计
slit-type flip bucket 窄缝挑坎
slit-type flip bucket outlet 窄缝式挑坎出口
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The outline of the masonry arch dam is double-curved, the dam body is impervious, the crest spillway is built of slotted-type bucket and the mid-discharge orifice is slit-type bucket.
模型试验和实际运行表明，浆砌石拱坝体型、坝体防渗及泄水建筑物等设计是成功的。
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