河床

River bed longitudinal profile ; aggradation ; downward sedimentation ; peneplane ; headward sedimentation ; old-stage stream

黄河河床纵剖面；加积作用；沿程淤积；溯源淤积；准平原；老年期河流

Working and destruction mechanism of protecting structure in high dam plunge pool is very complicated.

高坝消力塘作为防护下游河床的结构，其自身在高速水流冲击下的安全性是实现消能和防冲目的的关键所在，国内外都不乏破坏的实例。

A primrose by a river's brim, a yellow primrose was to him, and it was nothing more.

河床边那株报春花，对他而言就是一株淡黄的报春花，不可能是其他东西。

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。

I know, I suppose it must be similar to the River-Boca rivalry.

我知道。我想这和河床与博卡之间的竞争差不多。

After three days in the desert fun, I was looking at a river bed.

在沙漠中快乐三天后，我方法发现一处河床。

Several of the missing coins were recovered from the bed of the river.

丢失的钱币中，有几枚在河床上找到了。

While I am in the middle of crossing the river bed, a truck comes from the other side.

我开到河床中央的时候，一辆卡车迎面开了过来。

What did they plan to do by the dry river bed?

在那个干涸的河床旁他们打算干什么？

Used to be the bed of Yangzi River.

原本是古长江的河床。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。