查询词典 cutting-in

Only when the operator's hands when they release the button, the paper cutting guillotine button normally closed contact through to 5J loop, and then press the paper cutting paper cutting button to continue.

只有当操作者双手松开切纸按钮后，切纸按钮的常闭触点接通5J的线圈，再按切纸按钮才能继续切纸。

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。

At the 80% field capacity, root cutting did not significantly affect WUE for grain yield of millet; at the 50% field capacity early moderate root cutting significantly improved the WUE for grain yield, while the late root cutting did not show obvious improvement.

在高水条件下，伤根处理对谷子籽粒产量WUE影响不显著；而在低水分条件下，前期适度伤根能使谷子籽粒产量WUE显著提高，而后期伤根处理的籽粒产量WUE提高不显著。

The characteristics of cutting edge and cutting advantages for a new type of ball end mill with space curve cutting edge is introduced,the calculating method of curve geometric parameters is explained,and the manufacture technology is presented.

介绍了一种新型空间曲线刃球头铣刀的刃形特征和切削优点，详细分析了其空间几何参数的计算方法，简要说明了其制造工艺。

School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China）Abstract: Mathematic model of the tiny terrain covered cobalt-rich crust and the cutting process of mining head's cutting tooth were established by considering the force of sea water, and simulation software was developed by GUI tool of Matlab software to study the distributive properties of maximum load of the cutting tooth.

摘 要：考虑海水力的作用，建立深海钴结壳微地形的数学模型和采矿头截齿切削过程的数学模型，应用Matlab软件GUI工具编制相应的仿真程序，并通过实验验证仿真模型的正确性和仿真软件的工程有效性。

Can accomplish lengthwise multi-burner cutting, widthwise straight-flange cutting and auto-cutting of random geometric

切割，也可以进行任意平面几何图形的自动切割。门架式结构，强度高，刚性好；日本松下全数字式交流伺服驱

By coaxially detecting the images of the cutting front and the sparks jet , the relationship between the detected signals and cutting quality, including cutting defects and surface roughness, has been obtained.

本文通过同轴视觉传感系统同时获得切割前沿和切割火花簇射视觉图像，成功地提取了产生切割缺陷和切割面粗糙度变化时图像特征信号的变化规律，首次实现了以无切割缺陷并且在一定工艺条件下获得最高切割质量为目标的切割速度自寻优控制。

Based on the analysis of the process of free orthogonal metal cutting, the theory of elastic-plastic distortion and temperature field was discussed. Yield rule, intensify rule, fluxion rule, types of contact and diathermanous model of metal cutting were also analyzed detailedly. The FEA model of stress field and temperature field of free orthogonal metal cutting were established by the fundamental idea of FEA. State nonlinear, material nonlinear and geometry nonlinear thermal-stress coupling were analyzed by FEA technology. The separate criterion of chip and dispose of contact types were research emphatically.

本文在直角自由切削过程分析的基础上，讨论了金属切削过程中的弹塑性变形理论和温度场理论，详细分析了屈服准则、强化准则、流动准则、金属切削传热模型、接触类型等问题，并利用有限元的基本思想，建立了直角自由切削应力场和温度场的有限元模型，进行了状态非线性、材料非线性和几何非线性的热力耦合分析，重点研究了切屑分离标准的确定、表面接触类型的处理等问题。

Using the special-purpose cutting knife, cut pipes vertically, the cutter handwheel rotates 30 angles, the cutting knife rotates 1 circle along the round outside the pipe, does not exert oneself too quicklily while cutting to the aluminium layer, so as not to influence the aluminum pipe, deform it, the notch should have no burr levelly and smoothly

使用专用割刀，垂直切割管材，切割刀手轮旋转30角度，割刀沿管材外圆旋转1圈，割到铝层时不要用力过猛，以免影响铝管，使之变形，切口应平滑无毛刺

At last, the cutting mechanism of these steels were studied by the cutting force, cutting temperature and metallograph. Theoretical supports and improvement suggestions to the enterprise were provided through the work.

在对参试钢种的综合性能及工业应用前景作出全面客观评估的同时，也指出了参试材料有待进一步改善的一些问题，本文的工作可为研制钢种今后的工业化生产提供必要的决策依据。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。