They saw nothing but a dim grayness, or was it blackness?只看到暗灰一团, 或者根本就是黑漆漆的?Perfect grade and grayness engraving.完美的坡度雕刻、灰度图雕刻.Everything seemed together in a kind of bland, sickening grayness, and my knees buckled.看上去一...
Overburden had concealed the radioactivity.覆盖层屏蔽掉了放射性.Soil survey should be adopted in such soil overburden areas.在此类土壤覆盖区应采用土壤测量.Overburden pressure for three hundred years , isolated the light of day.覆压三百余里, 隔离天日....
The new edges are called the spokes of the wheel.新的边称为轮的辐.to equip with spokes安装辐条My little granddaughter caught her heel in the spokes of her bicycle — it was a very nasty wound...我小孙女的脚跟夹到自行车的轮辐里了，伤得很严重。Pentagon spokes...