航道

In the channel regulating work, regulating structures such as groyne, longitudinal dam are used to change water depth, water velocity and water surface slope of the channel.

航道整治工程中，常采用修建整治建筑物如丁坝、顺坝等来改善河流的水深、流速、水面比降，使河流达到通航要求。

Main creative points of the thesis are as following:1. It is the first time to apply 2-D and 3-D turbulent model of the air-water two phases flow to the study on hydraulic properties of groyne. It makes description of the turbulent flow field to be possible precisely. This offers a more accurate method to determine the water surface in channel improvement.2. Based on the results of experiment and simulation for 3-D turbulent model of air-water two phases flow, a new formula to compute the height of damming is built.3. Based on the 2-D mode and the formula to compute the height of damming, the subdivision method of 2-D computation for water surface at upstream and downstream.

本文的创新工作主要是：首次将三维水气两相流紊流数学模型应用于丁坝水动力学特性研究，使丁坝附近流场和紊动场的精细描述成为可能，为航道整治中水面线确定提供了一个更为准确的方法；(2)基于水槽实验和三维水气两相流紊流数学模型数值模拟结果，建立了新的丁坝前奎水高度计算公式；(3)基于上述奎水高度计算公式和本文二维水面计算数学模型，首次提出了丁坝上下游二维水面分段计算方法。

The second half of the Grand Line, beyond the second intersection with the Red Line, is also known as the New World.

在'伟大航道'的第二部分，在它和'红线'的第二个汇合处，那里被称为'新世界'。

To most men, experience is like the stern light of a ship which illumine only the track it has passed.

对于大多数人，经验像是一艘船上的艉灯，只照亮船驶过的航道。

The above-mentioned problem is not only related to the harbor waterway, the fore-dock depth, the amount and performance of the fore-dock machine, the process and efficiency of loading and discharging as well as the ingathering and outputting system, multi-transportation management and the policy of the port etc.

这一问题不仅涉及港口航道和码头前沿水深、码头前沿机械设备数量和性能、装卸工艺和效率，还关系到与集装箱港口相匹配的集疏运条件、多式联运组织管理和港口的政策环境等诸多问题。

It is the home of China's primary inland waterway port, the President explained.

这是中国的主要国内航道口岸之一；总统解释了。

L VOR/ILS(very high frequency omnirange/instrument landing system)— this system provide displays of relative and magnetic bearing to a selected VOR station and deviation from a preselected course.

l 甚高频全向信标/仪表着陆系统——此系统提供飞机相对于一个选定的VOR台的磁方位及飞机与预选航道的偏离显示信号。

VOR/ILS(very high frequency omnirange/instrument landing system)— this system provide displays of relative and magnetic bearing to a selected VOR station and deviation from a preselected course.

甚高频全向信标/仪表着陆系统——此系统提供飞机相对于一个选定的VOR台的磁方位及飞机与预选航道的偏离显示信号。

They have made many trips traveling both north and south on the eastern intercoastal waterway.

他们在东海岸内陆航道上有过反复多次的南北航行。

It is connected with the Intracoastal Waterway by a barge canal.

渡船运河使它与沿岸内陆航道相连。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。