In this paper,calculation method for profile error of modified ZI worm hob #is studied Factors that design parameters and relieving technical parameters affect profile error are analyzed theoretically, a new relieving technique called "changing hight of wheel center"is proposed,This creates a new way for the increase of qualified length of hob gear profile.
本文研究了修形ZI蜗轮滚刀齿形误差的计算方法，从理论上分析了滚刀设计参数和铲磨工艺参数对齿形误差的影响，提出了变砂轮中心高铲磨新工艺，为增加滚刀齿形合格长度开辟了新途径。
"Art Garden" Landscape Design in Central Area of the Campus of Southwest Forestry College;
西南林学院校园中心绿地艺园景观设计
Thought of City Horticulture Development in China;
中国都市园艺发展的新思考
Research and Practice on Professional Cultivation Scheme of Undergraduate Course in Horticulture;
园艺类本科专业人才培养方案的研究与实践
Classification on Chinese Horticulture,Aquatic and Fishery Periodicals
我国园艺类和水产渔业类专业期刊分类的建议
This paper outlines the agriculture value of peat, our country peat resource and the peat utilization in agriculture at home and abroad, among which emphatically were introduced peat s important use as good fertilizer, feedstuff and its additive, growth hormone, nutrient soil for gardening.
概述了泥炭的农用价值、我国泥炭的资源概况、以及国内外泥炭在农业中的利用状况,其中重点介绍了泥炭作为优质肥料、饲料及其添加剂、动植物生长刺激素、以及园艺培养土在农业生产中的重要作用,并展望了泥炭在农业中的应用前景。
While serving as a mineral fuel, peat has many uses in agricultural production, such as used as fertilizer, feedstuff, growth accelerant and nutrient soil for gardening, just because of richness in several microelements and properties of looseness and ventilation.
在农业中可用作肥料、饲料和作为生长刺激素,施用效果显著,在园艺方面亦可发挥良好的作用。
He walked to his tool shed and came back with a garden spade.
他走向他的工具棚，回来时拿着一把园艺铲。
There ae spades, forks, rakes, hoes and so on, but they can all be lumped together as garden tools.
有铲、叉、耙子、锄头等，但它们都可归入园艺工具类。
a trowel used by gardeners.
花园园丁使用的泥铲。
Handy implements like spade, rakepruning shears, etc., make gardening a more pleasant job.
铁铲、耙、枝剪刀等使用方便的工具，让园艺工作更写意。
The gardener dug out the weeds
园林工人铲除了杂草。
use a trowel on; for light garden work or plaster work.
用铌铲铲；用来作轻的园子里或涂灰泥的活。
Shovel the snow away from the garden path.
把花园小径上的积雪铲掉。
She shovelled the snow away from the garden path.
她铲去了花园小径上的积雪。
Sometimes he dug in his garden; again, he read or wrote.
他有时在园里铲土，有时阅读和写作。
Research of Application of Dragline Stripping Technology in Opencast;
露天矿索斗铲倒堆工艺开采方法研究
Analysis for Fracture Stick of 395B Power Shovel and Its Repairing Process
395B电铲斗杆断裂分析及修复工艺
Kill green vegetation in the fall and grow the garden the following spring.
在秋天铲除植被，并且在皆下来的春天种植花园。
Theoretical Research of Spading of the Profile of Aristotle Gear Hob
阿氏齿轮滚刀侧后刀面铲磨工艺的理论研究
Study on Application Dragline Overcastting System to Heidaigou Opencast Coal Mine;
吊斗铲倒堆工艺在黑岱沟露天煤矿应用研究
Optimal Research on Coal Conveying System in Dragline Stripping System;
拉斗铲无运输倒堆工艺下运煤系统优化研究
Optimization system design and implementation of draglines stripping technology
拉铲倒堆开采工艺优化系统的设计与实现
Effect of Dip Angle of Coal Seam on Dragline Stripping System
煤层倾角对拉斗铲倒堆工艺的影响研究
Influence of cast-infiltration on the structure and properties of scraper conveyor pan
铸渗工艺对刮板输送机铲板组织和性能的影响