In the upper reach the bed was dune covered and in the lower reach it was flat . 上游河段的床面为沙垄所覆盖，而下游河段则为平整床面。
The dry bracing climate and the smoothness of the land make labor easy for men and beasts . 干燥而凉爽的气候和那平整的土地，使得人畜容易在这里耕作。
Such machines could be used only on the large, flat, labor-deficient farms of the western u.s. . 这种机械只能在大型、平整、缺少劳力的美国西部农场上使用。
In metal the atoms are arranged not chaotically but in even rows, forming a crystal lattice . 在金属里，原子并不是杂乱无章地排列而是排成平整的行列，构成一个晶格。
Leveling hilly land into terraces, which slows the rate of runoff, allows more water to soak into the soil . 把丘陵土地平整成为梯田，减慢水流速度，让更多的水渗到泥土里。
He couldn't insert his notepaper into the roller properly, his fingers were shaking so violently . 他无论如何也不能把信纸平整地插在打字机的滚筒上，他的手指抖动得太厉害了。
For some sediments and flow the flat bed does not occur and the bed form goes directly from dunes to antidunes . 对某些泥沙和水流，平整床面并不发生，而床面形状则直接从沙垄转为逆行沙垄。
Helical-corrugated pipe can deliver more sediment with a given power input than either standard corrugated or plain pipe . 螺旋皱纹管与标准皱纹管或平整面的管道相比较，可以输送更多的泥沙。
Dimensional measuring . part 3 : flatness deviation 尺寸测量.第3部份：平整度偏差
On factors affected to the flatness of asphalt road 浅析影响沥青路面平整度的因素
