sewer

Previous studies showed that the municipal sewage with low salinity could achieve self-purification by microbial reactions in sewer.

通過72 h的連續批量實驗,分析高鹽度生活污水在下水道環境中的主要微生物反應以及這些微生物反應對水質的影響。

An experimental research was carried out to simulate the operating condition of low,middle and high concentration town sewage treatment by activated sludge system in sewer lines and ditches.

采用下水道活性污泥模擬系統處理低、中、高濃度的城鎮污水,結果表明:當進水COD分別為200、400及600 mg/L左右,MLSS為3。

City sewers are responsible for water circulation and recovery in a city.

21世紀的城市下水道擔負著水健康循環和水環境恢復的重任,應該成為水資源與營養物質循環的紐帶,成為綠色肥料與自然能源的基地。

Based on the detailed introduction of research and application of hyperbaric welding repair technology all over the world, the authors think that it is necessary to develop the hyperbaric underwater pipeline repairing system domestically, and analyze the key points in developing this system.

基于對水下破損管道維修方法進行的系統論述,指出水下干式高壓焊接維修在國外是一種通用可靠的管道維修技術;基于對世界范圍內水下高壓干式焊接維修技術的研究與應用情況的全面介紹,指出了自主研制我國高壓干式水下管道系統的必要性,并對其中的關鍵問題進行了論述。

A new technology which firms the underwater pipeline by fiber reinforced mats is put forward.

水下管道所處的自然環境非常復雜,水流將對管道產生各種作用力并且危及管道安全。

The intent of this project is to find a solution of underwater dry maintenance and repairs for underwater pipeline and structures.

“水下管道干式維修系統”是國家“863”高科技項目,該項目旨在為水下管道和結構的干式維修提供技術手段。

Service methods and instrumentation for offshore pipelines are different from those on land because of their vastly differing performance and environments.

"水下管道干式維修系統"是國家"863"高科技項目,旨在為水下油氣管道及管樁結構的干式維修提供技術手段。

Mechanic behavior of wall soil and liner of underwater tunnel;

水下隧道周圍土體及襯砌變形力學性狀研究

Research on the Minimum Rock Cover Thickness of Underwater Tunnel in Alternating Layers of Hard and Soft Rocks;

軟硬巖交互地層水下隧道最小巖石覆蓋層厚度研究

Shiziyang tunnel on Guangzhou-Shenzhen-Hong Kong passenger-dedicated railway,which has a design speed of 350km/h,is a milestone in underwater tunnel construction in China.

設計時速達350 km/h的廣深港客運專線獅子洋隧道,在我國水下隧道建設史上具有里程碑的意義,如何把握該工程的技術難點,適時開展相關科研工作,并采取針對性措施,對提高工程的建設質量至關重要,也為今后高水壓、特長水下隧道的建設提供借鑒。

In order to launch rocket-assisted torpedo with submarine torpedo tube,the general scheme and trajectory plan of the submarine-launched rocket-assisted torpedo carrier were presented,and the underwater trajectory mode of this torpedo inclining to leave water and yawing to elude submarine was designed.

為了實現火箭助飛魚雷采用潛艇魚雷發射管發射,對火箭助飛魚雷的水下水平發射的有關問題進行了探索性研究,設計了火箭助飛魚雷運載器的總體方案并進行了彈道規劃,提出了火箭助飛魚雷傾斜出水并偏航避艇的水下彈道運動方式。

This paper presents a simulation method of a certain air-launched mine′s underwater trajectory based on Matlab/Simulink.

提出了基于MATLAB/S imu link的空投水雷水下彈道仿真方法,分析了特定空投水雷水下運動時的受力情況,給出其水下空間運動彈道的數學模型,利用MATLAB軟件強大的求解偏微分方程功能以及其S-function擴展能力,完整地構建了基于MATLAB/S imu link的空投水雷水下彈道仿真系統,并采用此仿真系統對空投水雷在特定初始條件下的水下彈道進行了仿真和分析。

Using the formula, a software for underwater trajectory prediction was programmed.

將無空泡情況下的阻力系數估算公式代入自編的水下航行體彈道仿真軟件,計算得到的超空泡航行體全沾濕狀態下的水下彈道理論預報結果,與利用模型試驗中的實測數據得到的彈道曲線一致性較好,說明數值模擬對超空泡航行體阻力系數的估算基本準確。

On process design and construction technique of launching way of caisson precasting yard;

沉箱預制場水下滑道工藝設計與施工

The sewers discharge out at sea.

下水道的污水排入海里。

a block in the pipe, gutter, drain, etc

阻塞管道、 排水溝、 下水道等的污物

sewer cleasing sludge

從下水道清出的污泥

gulley emptier/sewage equipment

清溝機/下水道設備

The sewer was gorged with rubbish

下水道塞滿了垃圾。

The bathtub drain needs repairing.

浴盆的下水道需要修理。

plunge a rod into a blockeddrain to clear it

用棍通下水道使之暢通.

a drain that was jammed By deBris.

被殘余物阻塞的下水道

Drains and gutters require to be flushed.

下水道和陰溝必須沖洗。

Mud choked the drainpipe.

淤泥堵塞了下水道.

To clear a blockage from(a drain, for example).

從（如下水道）中排除障礙

The pipe connects with the sewer.

這根管子連接下水道。

The place where a sewer, drain, or stream discharges.

出水口陰溝、下水道或河流排水的地方

A small proportion of the streets were sewered.

一小部分街道鋪有下水道。

On upper floors， plugged drains may cause flooding.

樓上堵塞的下水道也許會引起淹水。

The drain is clogged again and there's water all over the bathroom floor.

下水道又堵了，整個浴室地面都是水。

We waste the dirty water by channeling it into the sewer.

我們通過溝槽把臟水排放到下水道中。

unstop a sink, toilet, drain, etc

疏通洗滌槽、 抽水馬桶、 下水道等.