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。
The edge of the disc had been machined flat/smooth.
圆盘的边缘已用机器磨平[光]。
Brief introduction to the working process, the construction characteristics, the applications and the main data's selection & calculation for the single disc, high-performance flat gate valve.
介绍了高温硬密封浮动阀座单闸板平板闸阀的工作原理、结构特点、适用范围及主要技术数据的选取和计算。
In the slave disc spring, a plurality of slits are formed in the inner peripheral part, and the load in a flat state produced when it is elastically deformed can be adjusted to a desired value.
在副盘簧中，在内周部形成有多个狭缝，弹性变形中的平坦时发生载荷调整为所希望的值。
The spray holes on the distribution disc are arranged according to a regular triangle or a square, and the baffle plate is a circular or square or triangular flat or convex or tapered plate.
分布盘上喷淋孔按正三角形或者正方形排列，挡板为圆形、方形或者三角形的平板、凸板或者锥形板。
Magnetic DisC: a generic term for any flat circular plate having a magnetic recording surface onto which data may be recorded, erased and recorded.
磁碟：任何有着可以用磁力作贮存，删除，再贮存的表面的圆形板片的总称。
Magnetic disc a generic term for any flat circular plate having a magnetic recording surface onto which data may be recorded, erased and rerecorded.
任何有着可以用磁力作贮存，删除，再贮存的表面的圆形板片的总称。
Pneumatic squaring head can square the sawtooth edge produced by disc heads, with smooth and flat edges.
其中气动修边能有效地消除碟形磨边所产生的锯齿状边，使砖坯周边光滑平整。
Pneumatic squaring head can square the sawtooth edge produced by disc heads, with smooth and flat edges.
其中气动修边能有效地消除碟形磨边所产生的锯齿状边，使砖坯周边光滑平整。
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