河床

A natural hot spring that intermittently ejects a column of water and steam into the air.

在稍高一些的流速时，个别的颗粒沿着河床间歇地滚动和滑动。

This kind of images has made the city become a forest of cement and mechanical moving objects.Those who have created and are living in this atmosphere are,at the same time,enjoying the curiosities,strangeness,dissepiment and insecuritie .All these feelings are hard to be described in one scenario.This is no doubt the feeling of Feng jie,therefore he has adopted a kind of mural painting,used some images that are not interrelated and organized these pieces of memories into a container.Feng jie has a good skill to paint realitically,so he is able to express this kind of absurdness as truly as photographs.He can organize the reality like pieces of cards into an ordered space of images.

环路、高速路、红灯、绿灯、黄灯，——从过街桥上看街道，街道是车的河床，流动着过来的白灯，过去的红灯——这种印象把城市变成了水泥的森林，机械物的运动场，——造成，并生活在其间的人，也同时"享受"这期间的"新奇感"、"陌生感"、"隔膜感"和"不安全感"——这种感受，很难在一个情节剧中叙述，——这就是作者的感觉，他采用一种壁画的篇幅，用一些互不相关的图像，把这些"记忆的碎片"组织在一个"集装箱"中——作者有很强的写实能力，因此能把这种潜在的荒诞感，做得如照片映像般的真实，能把这些碎片似的真实，潜在结构成一个有序的图示的空间中，——一种可沟通的"惶惑"，可感知的冷处理的客观性以及他的批判立场。

The agronomist suggested growing rice on the dried river bed.

那位农学家建议在干涸的河床上种水稻。

The technique of boundary-fitted coordinate system is used to overcome the difficulties resulting from the complicated shapes of natural river boundaries;the method of alternating direction implicit finite difference scheme is used to solve the partial differential equations in the transformed plane;and the technique of moving boundary is used to deal with the river bed exposed to water surface.

用适体坐标技术克服天然河道复杂的几何边界给有限差分法所带来的困难；用交替方向隐式有限差分格式求解变换平面上的偏微分方程；用动边界技术处理河床的淹露。

MOTC Directorate General of Highways, Xie Zhexiong:"We deepen the foundations, so no matter how low the riverbed gets, we're still underneath it. Then we make the pillars thinner, so they're less susceptible to fierce currents. The advantage of substructure replacement is it's cheap, and lasts forever. Finally, during construction the bridge can stay open."Alternative to thick bridge piers?

公路局第二区养护工程处课长谢哲雄：「我们把基础加深，深了以后河床再怎麼降低，还是在河床下面，然后我们的墩柱再稍微减细，减细以后它受的攻击坡会比较少，换底工法的好处就是节省经费，也就是永久的，最后在施工的时候，桥上的车子照样通行。

The flow .structure and river bed deformation near piers when an angle exists between the trend of piers and the direction of main-flow will be different from those when the angle equal to zero, such as the flow-obstructing width will increase, the diversion function will occur, the partial scouring pits get larger and deeper, and the main-flow and thalweg within a certain distance downstream the piers will deviate to on...

对桥渡附近的河床变形进行了实验研究，认为在桥墩走向与主流方向存在一定偏角时，桥墩附近的水流结构和河床变形将会不同于没有偏角时的情况，如增大阻水宽度，起到导流作用，使局部冲刷坑增大变深，以及能使下游一定范围内主流位置和深槽位置向某一侧发生偏移。

There is a low-head runoff electric station at lower reaches of principal river and the workshop is the style of riverbed. A successful example of dredging tail water riverbed with the blasting technology in an electric power plant is introduced with the measure of drilling dynamite for enhancing dynamoelectric benefit in the paper. The construction process flow, detonating parametric design and the security issues of the underwater demolition are discussed in detail and it will give light to the similar project.

摘 要：位於下游干流上某水电站是一座低水头径流式电站，厂房为河床式，为了提高机发电效益，本文结合了在某电厂用爆破法疏挖尾水河床的成功实例，利用钻孔爆破法对水下爆破进行施工，分别介绍了在该工程中进行水下爆破施工的施工工艺流程、爆破参数的设计以及水下爆破安全校核方面的内容，可供类似爆破工程借鉴。

There is a low-head runoff electric station at lower reaches of principal river and the workshop is the style of riverbed. A successful example of dredging tail water riverbed with the blasting technology in an electric power plant is introduced with the measure of drilling dynamite for enhancing dynamoelectric benefit in the paper. The construction process flow, detonating parametric design and the security issues of the underwater demolition are discussed in detail and it will give light to the similar project.

摘 要：位于下游干流上某水电站是一座低水头径流式电站，厂房为河床式，为了提高机发电效益，本文结合了在某电厂用爆破法疏挖尾水河床的成功实例，利用钻孔爆破法对水下爆破进行施工，分别介绍了在该工程中进行水下爆破施工的施工工艺流程、爆破参数的设计以及水下爆破安全校核方面的内容，可供类似爆破工程借鉴。

The re is a low-head runoff electric station at lower reaches of principal river and the workshop is the style of riverbed. A successful example of dredging tail water riverbed with the blasting technology in an electric power plant is introduced with the measure of drilling dynamite for enhancing dynamoelectric benefit in the paper. The construction process flow, detonating parametric design and the security issues of the underwater demolition are discussed in detail and it will give light to the similar project.

摘 要：位于下游干流上某水电站是一座低水头径流式电站，厂房为河床式，为了提高机发电效益，本文结合了在某电厂用爆破法疏挖尾水河床的成功实例，利用钻孔爆破法对水下爆破进行施工，分别介绍了在该工程中进行水下爆破施工的施工工艺流程、爆破参数的设计以及水下爆破安全校核方面的，可供类似爆破工程借鉴。

The re is a low-head runoff electric station at lower reaches of principal river and the workshop is the style of riverbed. A successful example of dredging tail water riverbed with the blasting technology in an electric power plant is introduced with the measure of drilling dynamite for enhancing dynamoelectric benefit in the paper. The construction process flow, detonating parametric design and the security issues of the underwater demolition are discussed in detail and it will give light to the similar project.

摘 要：位于下游干流上某水电站是一座低水头径流式电站，厂房为河床式，为了提高机发电效益，本文结合了在某电厂用爆破法疏挖尾水河床的成功实例，利用钻孔爆破法对水下爆破进行施工，分别介绍了在该工程中进行水下爆破施工的施工工艺流程、爆破参数的设计以及水下爆破安全校核方面的内容，可供类似爆破工程借鉴。

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。