河床

1.The brook warbled over its rocky bed.

小溪潺潺流过多石床。

2.The river slows on the flat bottom.

平坦床上减慢了流速。

3.A river rolls the stones along its bed.

把床里石头冲得翻滚而下。

4.We shall have to dig under the river to lay the sewage pipe.

"为了铺设污管道,我们必须床下面开一条通道。"

5.In the stream with strong bed load movement there is no benthic macroinvertebrate.

势散乱且床运动剧支流物种丰度和密度均很低甚至为零，生态条件差。

6.The puzzle will spread across a dry creek bed that divides the cities of Torreon, Coahuila and Gomez Palacios in Durango state.

这个大拼图将会铺杜兰戈州科托雷翁市、卡韦拉市、戈麦斯·帕拉西奥斯市交界一个床上。

7.The Coal Measures Strata are divided into 1 super-sequence and 3 sequences on the basis of paleostructure surface,widespread overlap unconformability,coal seam,and channel lag deposit.

根据古构造运动面、大面积超覆界面、煤层和床滞留沉积将含煤岩系划分为1个超层序和3个层序。