non pressure drain

用法例句

Using drainage canals in combined system to treat sewage is a new technology.

利用合流制排水沟渠处理污水是一项新技术。

The article sets forth the selection of the design scheme of the open drainage channel to underpass the expressway, the tunnel design and construction step flow as well as the construction monitoring methods.

该文阐述了排水明渠下穿高速公路设计方案选择,隧道设计与施工步骤流程,以及施工监测方法。

in the urban drainage covered ditch system were discussed.

针对施工现场的技术难点给出相应解决方案,并对城市排水暗渠与大管径管线进行经济对比分析。

The paper states the present situation and development of ditches and rivers for mountain torrents and channels for drainage and receding water in Taiyuan City.

阐述太原市山洪沟河及排退水渠的现状及发展 ,研讨河道及排水渠道的规划和复盖中应遵循的原则和存在的一些问

Effect of Rainfall Runoff on Nitrogen and Phosphorus Loss in Farming Drainage Ditch

降水对农田排水沟渠中氮磷流失的影响

Interception and Removal Effection of Agriculture Drainage Ditch on Nitrogen and Phosphorus;

农田排水沟渠对流失氮、磷的截留和去除效应

Comparison on Removal of Nitrogen and Phosphorus form Hibernal Farmland Drainage by Three Kinds of Ditches

三种类型农田排水沟渠氮磷拦截效果比较

The Purification and Optimize Design about Upland Natural Ditch with Urban Wastewater in Shibao Town

石宝镇自然排水沟渠对生活污水的净化效果及其改造强化方案探讨

ditch the land to drain it.

在陆地上挖沟渠来排水。

malodorous drains, ditches, bogs, etc

臭气熏天的排水沟、 沟渠、 沼泽等.

A long narrow trench or furrow dug in the ground, as for irrigation, drainage, or a boundary line.

沟渠，排水沟，水道在地面上狭长的沟渠或细沟，用于灌溉、排水或用作分界线

"ditch:a long narrow trench or furrow dug in the ground, as for irrigation, drainage, or a boundary line."

"沟渠,排水沟,水道:在地面上狭长的沟渠或细沟,用于灌溉、排水或用作分界线."

There' s a channel in the middle of the old street to help rainwater flow away.

旧街道的中央有一条沟渠来排放雨水。

Alongside each irrigation canal a drainage ditch was dug.

沿着每一条灌溉渠，他们还挖了一条排水沟。

Hydrodynamic Characteristic Analysis of the Ditch for Draining Sewage Basing on the RMA2 Model;

基于RMA2模型雨污排放沟渠的水动力特性分析

a channel through which water is discharged (especially one used for drainage from the gutters of a roof).

一种水由此排出的水渠（尤其是一种用作屋顶沟槽的排水装置）。

A drainage passage, as to a culvert.

排水沟排水通道，如阴沟

A complete irrigation system was made up of the main ditch, the branch ditches and many water channels through which water was diverted into the cultivated fields.

渠分干渠、支渠、小沟不同等级，以引渠水灌溉耕地。

Analysis on Solutions to the Problem of Water Diversion and Sediment Flushing in the Xinjiang Bayingou-River Headwork

新疆巴音沟河渠首引水排沙问题及解决方案分析

supplying dry land with water by means of ditches etc.

通过沟渠给旱地提供水。

A gutter or groove in a roof.

排水天沟屋顶的槽或沟

connecting drains and sewers clause

接驳排水渠及污水渠条款