河流的

The goals and the principles of conception for a river ecology restoration project are analyzed. The project used as the study case demonstrates that the traditional design method for a water resources project causes the channelization of a river and this leads to numerous adverse effects on the ecological system of a river.

从20世纪70年代开始科学工作者就对基西米河渠道化工程引起生态系统的退化进行了长期的观测研究，同时组织了论证与评估，研究如何采取工程措施和管理措施对于河流生态系统进行修复。

The narrow riverway were be widened,because they believed and be charitably and be loving.They have given hope to later people.

但也有一些河流，勇往直前的流过了，以信念、慈悲、爱将窄窄的河道越拓越宽，为后来的人们送去希望。

According to Russia's "Pravda" on September 6 is reported that recently, people from the Russian city of Chelyabinsk, about 400 km away, the Ural River flows through a lake and found a kind of a similar length of human teeth Frankenfish.

据俄罗斯《真理报》9月6日报道，近日，人们在距离俄罗斯车里雅宾斯克市约400公里远、乌拉尔河流经的一个湖泊内，发现了一种长着类似人类牙齿的怪鱼。

Clear-cutting large areas of forest at once and constructing steep switchback roads to harvest the timber have resulted in erosion and stream habitat destruction.

为了木材而大面积彻底砍伐森林以及修建陡峭的山路造成了水土流失和河流生态系统的破坏。

Archaeologists were impressed and puzzled by this map dated 2100 years ago because the level of mapping technology used in this map are comparable to modern maps, which are manifested by the high precision achieved in the mapping of rivers, and the representation of mountains and their peaks using conformal projection.

这幅2100多年前的古代地图，河流测绘的精确程度非常高，并且使用正形投影表示山脉山峰，其测绘科技水平已接近近代地图，这令人感到十分惊讶同时也不免产生困惑。

That's because Egypt's best-known river is suffering from a crayfish invasion.

这是因为埃及最有名的河流正遭受着小龙虾的入侵。

Major rivers in the Northeast are cresting after days of rain left many areas flooded.

在持续数日的将雨后，东北部的主要河流暴涨，致使许多地方洪水泛滥。

Basal synthem is the Taishan mountain group in archaean, is mainly the gneiss; The paleozoic synthem besides the regional lost stratas: Upper Ordovician, Silurian-Devonian and Lower Carboniferous, other stratas have the distribution, divides into Cambro-ordovician and Permo-Carboniferous two structure subgroups. Cambro-ordovician is a set of carbonate construction, Permo-Carboniferous system is a set contains the coal clastic rock deposition; In the mesozoic synthem lost Upper Triassic and Upper Crataceous ,growth Middle-Lower Triassic and Middle-Lower Jurassic and Lower Crataceous three structure subgroups, main growth varicolored land facies clastic rock, discovered rich fossil data such as cryptogam ,Ostracoda and Chareae and so on.

基底构造层指太古界泰山群，主要为片麻岩；古生界构造层除区域性缺失的上奥陶统、志留-泥盆系和下石炭统外，其余地层均有分布，分为冷武-奥陶系和石炭-二叠系两个构造亚层，冷武-奥陶系为一套碳酸盐建造，石炭-二叠系为一套含煤碎屑岩沉积；中生界构造层缺失上三叠统和上白垩统，发育下-中三叠统、下-中侏罗统和上侏罗-下白垩统三个构造亚层，为杂色陆相碎屑岩，发现丰富的孢粉、介形类、轮藻等化石；新生界古近系岩性以砂泥岩互层为主，含薄层油页岩，新近系-第四系为一套河流相沉积。

With this kit, your children will be able to design their own rivers and dam.

有了这个工具包，您的孩子将能够设计自己的河流和水坝。

For the scouring and depositing equilibrium stream, the dominating factor resulting in gravel decrescence was stroking, weathering and grinding.

式。对于基本冲淤平衡的河流，卵石沿程细化的主要原因是碰撞破碎、风化和磨损。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。