sand-bed stream的意思|示意

The prospector panned off bits of sand and gravel scooped from the bed of a stream.

探矿者淘选从河床中挖出的少量含金泥砂和沙砾。

Stream gradient and bed sand constituent are the main factors which is influencing on river pattern formation in the boundary condition.

河道比降、床沙组成是河道边界条件中影响河型形成的最主要因素。

The prospector panned out bits of sand and gravel scooped from the bed of a stream.

探矿者淘选从河床里挖出的少量含金泥沙和砂砾。

At upper flow regime, the total stream power gradually deviate the effective stream power from movable plane bed to existence of sand wave.

在高能态区，从动平整床面到沙浪的出现，总水流功率又逐渐背离有效水流功率。

The prospector panned off bits of a sand and gravel scooped from the bed of a stream.

探矿者淘选从河床里挖出的少量含金泥沙和砂砾。

They dip the pan into the bed of the stream, and then pan out the sand and dirt, hoping that some gold will be left.

他们用 淘盘舀 出小溪溪底泥沙，然后 淘去泥沙，希望有金子留下来。