各种方法和管道几何挖沟使用。
为挖沟器的设计奠定了理论依据。
It established the theoretical base for the design of trenching implement.
建立了挖沟机整体受力模型。
工人们在挖沟。
在地面凹凸不平地区也常用反铲挖土机挖沟。
A backhoe is often used in ditching where the soil conditions are usually rough.
抗真菌活性测定是采用琼脂斜面稀释法及挖沟法进行。
Antifungal activity was measured by means of AGAR medium dilution method and AGAR plate dig groove method.
如果不为它挖沟疏导，它就会把周围的土地变成沼泽。
If it is not a grooming, it will put the surrounding land into a swamp.
还包括清除在挖管沟范围内影响挖沟机工作的树桩和树根。
It also includes removal of tree stumps and roots in the ditch line that would interfere with operation of ditching machine.
论述了三种不挖沟敷设聚乙烯管技术的施工、应用和优缺点。
This paper describes the construction, utilization, advantage and disadvantage of three kinds of trenchless techniques of lay polyethylene pipe.
介绍了在海淤泥层采用石粉作为管道基础开挖沟槽的施工技术。
This paper introduces the construction technology of digging groove in the sea sludge layer, the pipeline foundation of which is made of stone powder.
挖沟撩壕栽培能极显著地提高三叶木通单位面积内茎藤和果实产量；
The trenches for cultivation can remarkably enhances the unit area output for the stem and fruit of Akebia trifoliate.
挖沟指为提供规定尺寸和管子埋设深度的管沟所需的全部挖土工作。
Ditching includes all excavation work required to provide a ditch of the specified dimensions and depth of pipe cover.
我很清楚，挖沟排水和筑坝拦水正把许多河流和沼泽地搞得一团糟。
I was well aware that draining and damming were making a mess of many rivers and wetlands.
如果在挖沟时有所折衷，则只能得到一条宽度不均匀或者深度不同的沟。
If you make compromises when you dig a ditch, you just get uneven width or unequal depth.
一个挖沟的工人加班一小时可以拿到更多钱，计件工完成的件数越多，赚得越多。
A ditch digger can work an hour of overtime for extra pay, and a piece worker earns more the more he or she produces.
计算分析了挖沟机在受到牵引力、海流力、土壤阻力等多种载荷作用下的可靠性。
Computing and analyzing the reliability of ditch digger under many loads, such as the pull, the drag of ocean current and the edaphic drag.
游击队还在公路上到处挖沟，使日军的汽车无法通行，只好绕道田野， 迂回行进。
The guerrillas also dug hundreds of trenches across the highways so that Japanese cars had to make constant detours through the fields.
罗马人在城外挖沟来掩埋垃圾和废物(包括人类尸体)，这种做法可能导致疫病的爆发。
The Romans dug trenches outside the city to hold garbage and wastes (including human corpses), a practice which may have contributed to out breaks of viral diseases.
各种跳蝽科小型破坏性昆虫，可在溪流或其它水域的岸边发现，有时它们在这些地方挖沟。
Any of numerous small predatory insects of the family Saldidae, found along the shores of streams and other bodies of water where they sometimes dig burrows.
在公路、铁路、河流及其它障碍物下敷设地下管道时，采用常规的挖沟埋管法施工难度较大。
When laying pipelines under road, railway, river and other obstructions, conventional drenched pipe burying method is hard in construction.
在那个时候，有许多解放黑奴说，离开了农场和家乡做了陌生的工作，如建设铁路和挖沟等。
At that time, there were many liberated black slaves that left the farm and the hometown to do the unfamiliar work, like building railroads and trenching and so on.
干扰的基岩排水和径流的变化模式，这可能增加侵蚀率。挖沟是勘探活动，大部分干扰的基石。
Disturbance of the bedrock changes drainage and runoff patterns, which may increase the rate of erosion. Trenching is the exploration activity that most disturbs bedrock.
周日，下诺夫哥罗德，农民正在烈日下挖沟，阻挡来自附近森林和泥炭沼的山火，蔓延到自己的耕地。
Under a blazing sun, farmers were digging trenches in Nizhny Novgorod on Sunday to stop wildfires in nearby forests and peat bogs from advancing on their land.
救助者在海滩上挖沟把海水引到鲸鱼身边，志愿者往鲸鱼和海豚身上浇水，把湿布照在他们身上以保持凉爽。
Rescuers dug trenches in the sand to channel water close to the whales as volunteers doused them with water and draped wet fabric over their bodies to keep them cool.
每个人身上都有一口泉眼，不断喷涌出生命、活力、爱情。如果不为它挖沟疏导，它就会把周围的土地变成沼泽。
Everyone has a spring, constantly spewing out of life, vitality, love. If it is not a grooming, it will put the surrounding land into a swamp.
人在做挖沟之类的工作时也会发出表示疲劳的声音。Larry，那grunt work是不是就是指繁重的体力劳动？
And people make grunting sounds, too, when they are working really hard at something like digging ditches.
在进行挖沟器的系统动力学分析过程中，利用了虚拟样机技术adams软件对挖沟器链传动过程中的受力情况进行了动态仿真。
During the dynamic analysis of mechanical system, the force that act on the chain of trenching implement is simulated by virtual prototype soft ADAMS.
在进行挖沟器的系统动力学分析过程中，利用了虚拟样机技术adams软件对挖沟器链传动过程中的受力情况进行了动态仿真。
During the dynamic analysis of mechanical system, the force that act on the chain of trenching implement is simulated by virtual prototype soft ADAMS.
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