查询词典 dams

The purpose of fishway is a way for fish to migrate upstream through dams and other obstructions.

中文摘要鱼道的目的在为使鱼类能溯上水坝、急流或其他水流障碍物而设计之通道。

Accordingly, in an attempt to stabilize the water current, to make fish migration easy, and to help shrimp to crawl over the check dams to upstream to breed, it is considered to add a porosity filtering on the main body of fishway (hereuinafter referred as improved fish-bone-type fishway).

但水流在鱼骨型鱼道中流况非常紊乱，故考虑在鱼骨型鱼道之主要支干上加一多孔隙滤材(本文称改良后鱼骨型鱼道)，使水流较趋於稳定，水中鱼类更易於上溯外，更让虾类藉以攀爬至防砂坝上游繁殖。

Dams in Africa have meant fewer fish, less grazing and less floodplain agriculture--none of which were anticipated.

在非洲'水坝就意味着少鱼，少放牧和农业少漫滩-没有一个人的预期。

It is noted that the fundamental frequency of dams with keyed contraction joints increases when monolith interaction is included.

实验发现当涵盖了坝段相互作用时，带有键控伸缩缝的大坝的基频会增加。

In addition, the team has not yet looked at nerve-cell growth in dams that have had more than one pup, Galea says.

另外，研究队伍还没有对于神经细胞的生长进行过多的研究。

The Article based on structural reliability theory and connected to the optimization model based on geometric meaning of reliability index, the study on the anti-slide stability of gravity dams is carried out RAGA.

文章以可靠度理论为基础，以基于可靠指标几何涵义的而建立的优化模型为联系，以基于实数编码的加速遗传算法为手段进行重力坝的抗滑稳定分析。

The Australian grayling, a freshwater fish, graduated from "vulnerable" to "near threatened" thanks to fish ladders at dams and other protection measures.

澳大利亚的一种淡水鱼，从"弱势"到"接近濒危"，幸亏在水坝的鱼梯和其他保护措施。

Due to the characteristics of handiness and shortcut, geophysical prospecting methods are used widely in hidden trouble exploration of river, lake dikes and reservoir dams.

在江、河、湖堤防及水库坝体隐患的勘查中，物探方法以其轻便、快捷的特点被广泛使用。

China has three operational dams on the river's headwaters in Yunnan and two more are being built.

中国在云南上游流域有三座正在运行的水坝，目前在建的还有两座。

This is a nation that builds dams, highspeed rail lines and skyscrapers with abandon.

这个一个大肆修建水坝，高速铁路，摩天大楼的国家。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。