For mature timber stands, the approaches of selection cutting, clear cutting and shelterwood cutting.
成熟的用材林应当根据不同情况，分别采取择伐、皆伐和渐伐方式。
The machine time for turning depends on the selection cutting parameters that affect the cost of turning, so a study of machine time for turning is necessary.
车削加工机动时间主要取决于切削用量的选择，切削用量的选择直接影响车削加工成本，因而，对车削加工机动时间的研究非常必要。
The selection of the correct cutting speed has an important bearing on the economics of all metal cutting operations.
正确的选择切削速度对所有金属的切割操作成本都有有很大的影响。
The selection of the correct cutting speed has an important bearing on the economics of all metal cutting operations.
选择正确的切削速度对所有金属的切削操作有着重要的经济上的影响。
CNC plasma cutting machine, the selection of technological parameters for cutting quality, cutting speed and efficiency, the influence on the effect of cutting is very important.
等离子数控机切割机工艺参数的选择对切割质量、切割速度和效率等切割效果的影响是至关重要的。
This article analyzes the main factors and selection of rational cutting conditions influencing the surface flatness error and other defects in sawing marble plates with diamond saw blade.
本文分析了金刚石框锯在锯切大理石时，引起表面平面度偏差和其它缺陷的主要因素以及合理工作条件的选择。
By means of drill grinding and selection of suitable cutting parameters, the serviceability of drill and surface quality of workpiece are improved.
通过对钻头进行修磨，选择适当的切削参数，可以提高钻头的耐用度和工件的表面质量。
Is the mesh woven net, wire netting, through selection, cutting, crochet, testing a series of procedures such as woven.
格宾网是机织网，经过选丝、织网、剪片、勾边、检验等一系列程序编织而成。
The technology and its application and the equipment selection for cutting fluid processing center in the enterprise with high volume machining production are introduced in detail in this paper.
对大批量生产的机械加工企业中所采用的切削液处理中心技术及其设备的选型和应用作了详细的介绍。
Dynamic analysis and parameters selection of electrochemical cutting of production pipe in horizontal hole.
水平井生产管电化学切割动态分析及参数选择。
The clamping means, cutter selection, tool path planning and cutting parameters determination using three-axis machine for aluminum windshield pieces were studied.
研究了风栅铝片三轴铣削加工中装夹方法、刀具选择、走刀规划以及切削参数确定方法；
This paper introduces the design of the cutting edge section, selection of its geometrical parameters and application of the stamping cutter-die used for blanking the nonmetallic materials.
介绍了非金属材料落料用切刀式冲模刀刃截面的设计、几何参数选择与应用。
The author gave us the reasonable selection of tool materials, tool parameters and cutting parameters during turning of hardened steel in order to get the ideal cutting result.
着重说明了车削淬火钢件时，如何通过合理地选用刀具材料、刀具几何参数及切削用量达到理想的切削效果，并提出车削淬火钢件时应注意的若干问题。
Presently, variety improvement, increment in P, K and microelement and selection on suitable cutting period are main methods to improve yield and quality.
提高产量和品质目前人们主要是从品种改良和增施磷、钾及微量元素、选择适当刈割期等方面入手。
Vital meaning of materials gained attentions in cutting tools for casting iron and influential factors for tool selection in cutting casting iron are introduced.
介绍了选择铸铁切削用刀具需考虑的因素，可用于不同牌号铸铁的切削用刀具新材料有硬质合金刀具、陶瓷刀具、金属陶瓷刀具和超硬刀具。
The principle of the scheme selection of horizontal-hole blasting for highway cutting excavation and its design method of blasting parameters are emphatically introduced.
介绍了公路路堑水平深孔爆破的方案选择原则及其爆破参数设计方法。
Some practical problems of this technology, such as tool material selection, special optimization index of cutting parameters and tool geometry determination, are discussed as well.
本文还深入讨论了刀具材料、特定的切削用量优化指标以及刀具几何参数确定等实际技术问题。
This article on how to determine the lathe cutting tool selection and discussed.
本文就如何确定数控车床刀具选择与切削用量进行了探讨。
Mainly includes the blank choice, machine tool selection, cutting dosages and the way to determine the content.
主要包含了毛坯的选择、机床的选择、切削用量的确定等内容。
NC bending machines die material selection is cutting the foundation of success.
数控折弯机模具材料的选择是切削加工成功的基础。
The process problems in heavy lathe machining, such as the selection of tool materials, tool angles, cutting parameter, and the mount of tools are analyzed.
对重型车床切削中的刀具材料、刀具角度、切削用量的选择以及刀具安装等工艺问题进行了分析。
This paper discusses the problem about NC manufacturing process for the thread analyzes cutting parameters selection, feed pattern determination, NC programming, and so on.
探讨了螺纹的数控加工工艺。阐述了切削用量选择、走刀方式确定、数控程序编制等内容。
In this paper, the working procedure Confirmation of Control Variable and Selection of Main Components and Part of Design Schematic of tread cutting system are expressed in detail.
详细介绍了胎面裁断系统的工作过程以及控制变量的确定、主要元件的选取和部分控制回路的设计图。
Finally, space parameter measurement method based on feature point selection was designed to accurately measure the distance, Angle and volume of cutting motor structure.
最后，设计出基于特征点拾取的空间参数测量方法，实现剖切后发动机结构空间距离、角度和体积的精确测量。
Put forward the application of mechanics models, all these work lays the foundation for the selection of cutting parameters in milling process.
提出了力学模型的应用范围，为实际切削加工中切削参数的优化选取提供了理论依据。
This article analyses the kinematical feature of the cutting and loading process of the screw drum. It can provide certain theoretical basis for the selection of parameters for the drum.
分析了螺旋滚筒截割和装载过程的运动特性，可为滚筒的参数选择提供一定的理论依据。
In this article, new fuzzy mathematical models for optimized selection of cutting condition and their solving method are presented, which are more reasonable and more concise then the old ones.
给出了新的更为合理而简捷的切削用量优化选择模糊数学模型及其求解方法。
Hence, the hardness of the tool and the degree to which it remains its hardness at high temperature are important in the selection of a cutting-tool material.
因此，刀具的硬度和它在高温下所能保持的硬度是选择切削刀具材料时的重要因素。
Hence, the hardness of the tool and the degree to which it remains its hardness at high temperature are important in the selection of a cutting-tool material.
因此，刀具的硬度和它在高温下所能保持的硬度是选择切削刀具材料时的重要因素。
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