查询词典 rate cutting

The main research content is: Using the experimental of cutting force and roughness of high speed face milling cutter and high speed end milling cutter mill aluminium alloy and cast iron, analyze the rules of the high speed milling velocity, feed rate per tooth, milling depth and milling width to high speed processing. Use multiple linear regression method, set up surface roughness and the cutting force fluctuation models. Certify the regression model notability, and provide a reliable guarantee for the accuracy of function optimization. Based on the targets of productivity, manufacturing cost, surface roughness, cutting force fluctuation optimization model, according to research of the high speed milling parameters selecting restrict of work piece, machine, tool and safety, set up high speed milling parameters multi-object optimization system.

本文以已有的高速铣削机理及高速刀具技术研究成果为基础，结合高速铣削试验，进行了基于遗传算法的高速铣削参数优化研究与系统开发，主要的研究内容为：通过高速面铣刀和高速立铣刀加工铝合金和铸铁等材料的切削力和表面粗糙度试验，进行了铣削速度、每齿进给量、铣削深度和铣削宽度对高速铣削加工过程影响的研究；采用多元线形回归的方法，建立了切削力及其振幅和表面粗糙度模型，并对模型的显著性进行验证，为高速铣削参数优化模型的建立奠定了基础。

In order to raise the rate of the rootage and survival of the cutting, save labor-power, reduce labor intensity and cut down the cost,we have developed the ecological environment auto control system for cutting transplant in the green house .It is able to control the greenhouse environment for the whole process of the cutting transplant and to satisfy the necessary condition of it.

为提高扦插苗木的生根率和成活率，节省人力，减少工人的劳动强度，降低育苗成本，我们研制了扦插育苗大棚生态环境自动化调控系统，实现了整个育苗过程大棚环境的自动化调控，满足了扦插苗木对环境的要求。

The effect of cutting types, growth regulation hormones, cutting seasons and cutting substrates on cutting survival rate of Sarcococca ruscifolia were studied.

方法］对扦插繁殖过程中插穗类型、生长调节剂、扦插季节、扦插基质对野扇花扦插成活率的影响进行研究。

It was considered that the control of the PRD fluid performance and the dosage of flow pattern adjusting agent PF-VIS were the key of the technique. The viscosity of PRD spudding fluid increased rapidly with the decrease of shearing rate, it indicated that it had good sand carrying ability. The spudding fluid was good capacity of high temperature stability under the low shearing rate, its viscosity was much higher than that of traditional drilling fluid, it was beneficial for cutting carrying in big deviated wells and preventing the formation of cutting bed.

认为要控制好PRD弱凝胶钻开液的性能，流型调节剂PF-VIS的加量是关键；PRD弱凝胶钻开液的粘度随着剪切速率的降低而急剧上升，显示了其优良的井壁携砂带砂性能；PRD弱凝胶钻开液体系具有较好的高温稳定性；PRD弱凝胶钻开液体系在低剪切速率的高粘度，大大高于传统聚合物钻井液，有利于在大斜度井携带岩屑以及防止岩屑床的形成。

This paper studies the influence of eletrical parameters on the cutting rate and surface roughness of the cutting compound material SiC p/LY12 in wire cutting electric discharging machining and analysed the surface features of cutting with SEM.

研究了电参数对电火花线切割加工SiCp/LY1 2复合材料的切割速度和表面粗糙度的影响；用扫描电镜分析了复合材料线切割加工表面的SEM形貌。

As a result of cutting and high feed rate, HSC processing will normally be the life of the tool down paper, from the tool material, geometry parameters, stretching the length of the hanging, as well as cutting parameters and cutting geometry, cutting line, and other lubrication cooling to take measures to minimize the reduction of life expectancy.

由于切削和进给速度高，HSC加工中刀具的寿命一般会降纸，需要从刀具材料、几何参数、悬伸长度以及切削参数、切削几何关系、走刀路线、润滑冷却等各方面采取措施，尽可能减少寿命的降低。

In mechanized harvesting, high damage feasibility of stubbles and high loss rate highly impact the spread of sugarcane harvester, while manual cutting always performs low loss rate and good cutting quality.

甘蔗直径较粗，表皮坚硬[2]，现有甘蔗收割机多采用圆盘根切器，切割刀片一般为矩形刀片[3]。有的机型(如日本的NB-11手扶式甘蔗收割机)采用类似谷物收割常用的带齿的梯形或三角形刀片[4]。

Method］ 5 matrices: M1(50% peat + 50% perlite),M2(40% peat + 60% perlite),M3(50% peat + 50% chestnut soil),M4(40% peat + 60% chestnut soil) and M5(100% peat) used for Euonymus fortunei cutting in container were tested and the effect of the different matrices on the rate of callus induction and root growth,the length and number of root,and the growth amount of Euonymus fortunei was investigated.［Results］ The results showed that the best effect on Euonymus fortunei cutting was from the M1,in which,the rate of root growth,callus induction,the length of root and the number of new branch were 87%,88%,68.0 mm and 4.6 branches,respectively.

方法］ 采用5种基质配比，分别为M1（50%泥炭+50%珍珠岩）、M2（40%泥炭+60%珍珠岩）、M3（50%泥炭+50%栗钙土）、M4（40%泥炭+60%栗钙土）、M5（100%泥炭）对扶芳藤进行容器扦插育苗试验，对不同基质引起的扶芳藤愈伤率、生根率、根长、单株根系数目、新生枝数及新生枝生长量进行调查分析，［结果］结果表明，基质M1中扦插的扶芳藤生根率、愈伤率最高，分别为87%和88%；根长最长，为68.0 mm；平均新生枝数最多，为4.6条，效果最佳。

The objective standards of the EST risk assessment include pipe buried depth, frequency of going on a tour of inspection, amount of cars or trains to get by, thickness of the pipe or tank, occupied rate of the earth's surface on the pipe, depth of the corrosion pit, working time, soil resistively, MAOP, soil I〓, accident frequency, current velocity of river water, cutting down rate of the riverbed, fallback rate of the river bank, distance of the upper reservoir, criminal rate, attaining goal rate, reliability level, GDP, population amount, combustibility N〓, toxicity N〓, long-term danger RQ and so on.

专家评分法的客观性指标有管道埋深，巡线频率，日车辆通过数量，管道和罐的厚度，管道上方地面被占用率，腐蚀坑深度，服务年限，土壤电阻率，最大操作压力，土壤塑性指标I〓，事故频率，河水流速，河床下切率，河岸后退率，上游水库的距离，犯罪率，达标率，可靠度，国民生产总值，人口数量，易燃性N〓，毒性N〓，长期危险性RQ等。

In the test, we use CCD camera to obtain the videos of the well-cutting picks and the worn-cutting picks, then use Matlab to read image and process it, and then use the method of statistics to calculate the average area of the two cutting picks, at last can get the wear rate of cutting picks.

用CCD摄像机获得完好截齿和磨损截齿的视频段，然后用Matlab读取图像并对其处理，利用统计学的方法，快速计算出两个截齿的平均面积，从而得到截齿的磨损率。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失