河床

The river slows on the flat bottom.

水在平坦上流速。

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

"为铺设污水管道,我们必须在下面开一条通道。"

The brook warbled over its rocky bed.

小溪潺潺流过多石。

A river rolls the stones along its bed.

水把里石头冲得翻滚而下。

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

势散乱且运动剧支流物种丰度和密度均很低甚至为零，生态条件差。

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

这个大拼图将会铺在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干枯上。

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、煤层和滞留沉积将含煤岩系划分为1个超层序和3个层序。