1.
Distribution of Sediment Iron of the Ditch System in Sanjiang Plain,Northeast China
三江平原多级沟渠系统沉积物中铁的分布特征
2.
Roman engineers maintained water levels in aqueducts by means of floating valves that opened and closed at appropriate levels.
罗马工程师用在适当水位开、关的浮子式阀来保持沟渠系统的水位。
3.
The Effect of Chinese-style "Connection" on the Communication Channels
浅议中国式“关系”对渠道沟通的影响
4.
What is more, the ditching and drainage systems serving the developed areas appeared to facilitate the discharge of fecal bacteria into nearby waters, including shellfish beds.
而且，开发地区的沟渠和排水系统，似乎有助于粪便细菌进入附近的水域，其中包括了贝类养殖场。
5.
The principal pipe or conduit in a system for conveying water, gas, oil, or other utility.
主要管道输送水、天然气、石油系统中的主要管道或沟渠或其他公用事业设备
6.
Sale SystemThe Point of Sale Management;
销售渠道系统―销售渠道管理的关键
7.
The fields are crisscrossed by irrigation canals and ditches.
田野上沟渠纵横 。
8.
a laborer who digs ditches.
挖掘沟渠壕沟的劳工。
9.
To make, form, or cut channels in.
开辟沟渠在…上制作、形成或切割沟渠
10.
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。
11.
To form a deep ditch or channel.
形成冲沟形成深深的沟壑或沟渠
12.
To wear a deep ditch or channel in.
在…上开沟在…上冲出深深的沟壑或沟渠
13.
Study on Management Information System of Water Resources in Dongfeng Canal Head;
东风渠渠首水资源调度管理信息系统研究
14.
supplying dry land with water by means of ditches etc.
通过沟渠给旱地提供水。
15.
ditch the land to drain it.
在陆地上挖沟渠来排水。
16.
bestride a horse, chair, ditch, fence
跨在马、 椅子、 沟渠、 围栏上.
17.
The terrace channels are convenient for irrigation.
梯田的沟渠便于灌溉。
18.
a test site ditched
用沟渠围起来的试验场