Double Disc Flat Gate Valves 双闸板平板闸阀 ; 双闸板平板 ; 高温高压电站闸阀 ; 双阀板平板
Single Disc Flat Gate Valves 单闸板平板闸阀 ; 单闸板平板 ; 单阀板平板 ; 平板闸阀
Single Disc Flat Gate ales 单闸板平板闸阀
Double Disc Flat Gate ales 双闸板平板闸阀
flat turn disc 平旋盘
In ancient times the earth was conceived as a flat disc.
在古代人们认为地球呈扁平的圆盘状。
They depict4 the world as a flat disc, which shows that the Babylonians thought the earth was flat.
他们将世界描绘成一个平面的圆盘，这也显示出巴比伦人认为地球是平的。
"There is no unified flat Earth model, " Shenton suggests, "but the most commonly accepted one is that it's more or less a disc, with a ring of something to hold in the water.
“尽管平坦地球论还没有公认的模型，”珊顿说，”但为多数人接受的观点认为，地球形状是个圆盘，并且在水中托着一圈某种东西。
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