查询词典 trenching

BUnder the condition of three different field surface treatments-one no till,one completedeep loosening,one strip trenching,the discrepancy by total amount of accumulative infiltration byboth field test and FEM methods during 630 min was less than 10%.

而粘壤土三角形松土断面最佳参数为：松土间距s=60cm，松土深度h=10cm，松土宽度w=10。此时，当量松土深度为1.67cm，100min的入渗量为29.35mm，比相同土壤的免耕处理田面的入渗量增加了19.8%，松土效率为每增加1cm的当量松土深度，入渗量增加11.9

This calculation was based on surface trenching and eight diamond drill holes.

这个计算是基于表面挖坑八金刚石钻孔。

This is so it can be covered during excavation instead of trenching it in.

这是它可以覆盖在开挖而不是挖坑进

To understand the mechanisms of how plants affect soil biota from a plant physiological perspective, litter exclusion, girdling and root trenching experiments were carried out to investigate the impacts of above/belowground resource inputs on soil nematode communities.

本论文研究了云南哀牢山人为干扰条件下和植物群落自然演替过程中植物群落变化对土壤线虫群落的影响，并通过去凋、环割和切根三种方法分别控制植物的地上地下资源输入，从植物生理机制的角度分析植物对土壤线虫群落的影响机制。

Because this was an upscale lakefront residential area, the plan was to slipline the stressed pipe instead of trenching.

因为这是一个高档湖滨住宅小区，所以该计划强调用滑入法施工，而不是开挖。

Through test, it is considered that it is economic and feasible to adopt vertical auger trenching for some small size channels. After improved and perfected, the newly developed auger cable trencher can adapt to the work conditions of trenching and presents some promotion and application prospect.

通过试验，认为对于小型沟形采用立式螺旋挖沟方式是经济可行的，研制的螺旋电缆挖沟机在改进完善之后，能够适应挖沟的工作条件，具有一定的推广应用前景。

A kind of trencher with vertical auger for cable trench digging is described in the article. Referring to the basic principle of auger drill, trenching operation is realized via horizontal moving. It is a dedicated equipment to excavate cable trenches in oil fields. It features small body, simple operation, high work efficiency and low manufacturing cost for trenching attachment.

介绍一种立式螺旋电缆挖沟机，利用螺旋打洞机的基本原理，通过平移完成挖沟作业，是油田电缆沟开挖的专用工程设备，具有体积小、操作方便、工作效率高和挖沟工作装置制造费用低廉等特点。

If there is not enough trenching depth may be appropriate to reduce the height of the horizontal milling cutter with a view to enhancing the position of the endmill to ensure that appropriate trenching depth.

如果拉槽深度不够，可适当降低平铣刀的高度，以提高立铣刀的位置，确保拉槽深度合适。

A boot-type jet trenching system is adopted which is towed by the supporting ship. It is mainly used for trenching hard sandy clay at the shoal area with water depth 0.8 m to 30 m. Diameter of the cable to be buried is up to 150 mm, and the burying depth more than 2 m. This system has advantages of simple structure, high burying speed and great trenching depth.

该系统采取滑靴型式的喷冲挖沟方式，埋缆机由母船拖曳前进，主要用于水深在0.8～30 m的滩海，底质为硬砂土和红胶泥层，埋设直径小于150 mm的电缆，埋设深度大于等于2 m。

A boot-type jet trenching system is adopted which is towed by the supporting ship. It is mainly used for trenching hard sandy clay at the shoal area with water depth 0.8m to 30m. Diameter of the cable to be buried is up to 150mm, and the burying depth more than 2m. This system has advantages of simple structure, high burying speed and great trenching depth.

该系统采取滑靴型式的喷冲挖沟方式，理缆机由母船拖曳前进，主要用於水深在0.8~30m的滩海，底质为硬砂土和红胶泥层，埋设直径小於150mm的电缆，埋设深度大於等於2m。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐