查询词典 trenching

Trenching treatments significantly reduced fungivore density and diversity and enhanced nematode channel ratio in both soil layers.

切根处理降低了各土层中食真菌线虫的密度和多样性，导致土壤线虫通路比值上升。

Further work will involve more detailed mapping, pitting , trenching.

进一步工作就是指更详细的填图，坑探，槽探等。

Construction techniques and associated issues are explained from stringing, welding and trenching to backfilling, cleaning, sizing, quality control and testing.

施工技术以及相关问题也被从串接，焊接，挖坑，清理，上将质量控制和检测。

In the practice of the past can continue to provide port summarizesthe is about 3 mm, the version of the heart Center, which also happens to basically meets the milling back and trenching of size standards.

笔者在不断实践中总结出，订口约为3mm时，版心正好居中，这也基本上符合铣背及拉槽的尺寸标准。

This example focuses on the design seeder platoon of vehicles, fertilization devices, trenching vehicles structure.

本例着重对播种机排种器、排肥器、开沟器、覆土器以及镇压轮等结构进行设计选择。

It is concluded that the deep fracture was caused by epigenetic reformation by release of high geostatic stresses. The formation age of the deep fracture is when the river changes from wide valley to canyon by stream trenching.

在此基础上提出，库首右岸深部拉裂缝是岸坡快速卸荷条件下浅表生改造的产物，其形成时期相当于河谷由宽谷深切为峡谷这一转换时期。

The non-disposal or improper disposal of MSW caused serious problems, such as trenching on infield, contaminateding water source, disfeaturing nature scenery, even endangering people s life and properties.

未经处理或处理不当的城市生活垃圾会侵占耕地、污染水源、破坏自然景观，甚至危及到人们生命财产安全。

Hoe trenching shovel-type multi-zone for the two crops a year post-harvest wheat stubble iron corn planting area in a year a cooked corn straw mulch on the ground there are certain difficulties in use.

锄铲式开沟器多用于一年两熟区小麦收获后玉米的铁茬播种，在一年一熟区的玉米秸秆覆盖地上使用有一定的困难。

Cusp-shaped trenching is China Agricultural University in the course of the study of conservation tillage in the introduction of screening test the Australian soil, and it has buried a strong ability to form a narrow groove (small amount of ground-breaking), ability to automatically back to earth, simple structure, reliable, low cost and so on.

尖角形开沟器是中国农业大学在保护性耕作研究过程中引进、试验筛选的澳大利亚开沟器，它具有入土能力强，沟形窄，自动回土能力强、结构简单、工作可靠，价格低廉等特点。

After the replacement of the toilet tank fittings, toilet transformation and waterproof plugging for home decoration users Heating modification and test pressure, cast iron radiator displacement, high-grade radiator installation, unit radiator repair transformation, specializing in heating does not heat, converted a second floor and multi-storey high-rise independent water, rain water pipe replacement and installation residential buildings, walls and floor drilling, trenching and demolition, mechanical cleaning of various drains.

提供 承接家庭、单位及小区老旧管道更新、更换，自来水查漏，解决各种管道疑难问题，对突发漏水管道24小时抢修、快修，对家庭提供日常维修服务，修换水阀、软管、水龙及地漏等，维修马桶、洗手盆、洗菜盆等，更换马桶后水箱配件，卫生间改造及防水堵漏，对家庭装修用户进行暖气改装及试压，铸铁暖气片移位，高档暖气片安装，单位暖气片维修改造，专修暖气不热，改装一、二楼及多层高楼独立下水，居民楼雨水管更换安装，墙地面钻孔、挖沟及拆除，机械疏通各种下水道等。

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