查询词典 cutting bit

Tumefaciens mediated transformation using cotyledonary node as explants was optimized; 3 methods including cutting chapiter, ovary injection and chapiter spreading for pollen tube pathway was compared. Cutting chapiter and ovary injection can both achieve insect resistant gene tranformants.

优化了以子叶节为外植体的农杆菌介导转化技术；比较了切割柱头、子房注射和子房涂抹3种花粉管通道法处理授粉后黄瓜子房的转化效果，切割柱头和子房注射均可成功获得黄瓜抗虫转基因植株。

Clear-cutting is favored by the timber industry over the alternative, selective cutting of individual trees in a forest, for several reasons.

相比在一片森林中有选择性的砍伐树木，伐木公司更偏爱皆伐，有几方面的原因。

Die-cutting die,coiler,cutting machine etc.

模切模、收卷机、裁切机等。

The application of PLC design for cutting the cold-roll workpieces of racking in certain measurementZhenJiang OTL Storage Equipment CO.,LTD ZhangWeiguoAbstract: Cutting the cold-roll workpieces of racking in certain measurement is the most important part in the racking rollforming line ,It's mainly used to cut off the continuous workpieces according to the need of design ,The programmable logical controller replaced the traditional relay to control the system better in this design.

货架冷弯组件定尺剪切是货架冷弯成型生产线上的一个重要环节，它的主要作用是将连续生产的货架组件剪切成库房设计规划所要求的尺寸系列，传统的定尺剪切利用有接点的继电器来实现控制，为提高定尺精度，本文设计采用可编程序控制器取代传统接点继电器对系统进行改进。

The author studied the motion compatibleness of executive system, and built the connection of the motion parameter (motion-stand ratio) that complete "walk paper" craft and the bar dimension of die cutting toggle press mechanism that complete "die cutting" craft.

研究分析了主执行系统运动协调性，建立了完成"走纸"工艺的平行分度凸轮的运动参数和完成"模切"工艺的肘杆机构构件尺寸之间的关系。

The series of ZNFM Full Automatic Lamianator is a compound device which uses the pre-pasted and no-glue film with papers,its head adopts Feida head automatic feeding system,the laminating steel rod using hot oil cycle heating system,the compound pressure adopts air pressure devices,the electrical control system uses PLC Programming controller,the cutting system equips with the cutting system of rotaty flying knife and uchigatana,the back equips with the automatic collecting system, it is space-saving and high degree of automatic,easy operation and high stable performance.

ZNFM全自动复膜机系列，用于预涂膜和无胶膜与纸张的复合设备，该复膜机头部采用飞达头自动输送纸系统，压合钢棍采用热油循环加温系统，复合的压力采用气压装置，电气系统采用PLC编程控制，分切系统配有打刀和旋转飞刀分切装置，复膜机后部配有自动收纸系统，整机占地面积小，自动化程度高，操作简便，稳定性高，是印刷及包装行业的首选设备，能为你在大量生产时可获得更好的经济效益。

Oxygen and fuel gas can be imput from left or right to center gas pathway,through the caliber condign pathway transfer to cutting torch.For effectively working of the many torches' cutting machine,the center gas supply system using solenoid control the gas flow connecting or breaking off,and through regulator adjusting gas pressure.

氧气或燃气可以从左边或右边输入中央气路，通过口径适宜的管路传送到割炬，为了使多割炬的切割机有效地工作，中央配气系统使用电磁阀控制气流的通断，并通过压力调节器调节气流的压力。

A close-loop control system including cutting process control was designed to accomplish adaptive control of constant force cutting process .

针对恒力切削过程自适应控制，设计了包括切削过程的闭环控制系统。

Analyse the tooth geometry of Klingelnberg Cyclo-Palloid spiral bevel gear.,according to the relative position and kinematic relation of the cutter heads,virtual crown gear and the processed wheel blank,established the system of coordinates of the gear cutting, dedcuced the tooth face equation of the virtual crown gear, according to relations of the gear cutting and space theory of engagement, deduced the tooth face equation of klingelnberg Cyclo-Palloid spiral bevel gear, and drawing the three-dimensional graphs of the virutal crown gear and Klingelnberg Cyclo-Palloid spiral bevel gear according to the design and setting parameters.

根据铣齿加工中刀盘、摇台和轮坯的相对位置和相对运动关系建立了切齿啮合坐标系，由矢量的旋转推导了产形轮齿面方程；根据空间啮合原理和切齿啮合关系推导了被加工齿轮的齿面方程；由设计参数和铣齿调整参数计算得到齿面离散数据，绘制了产形轮和摆线齿锥齿轮的三维齿形。

A theoretical model for calculating the cutting angle with different crystal planes, orientations and tool orthogonal rakes are described in this paper. It is built with the ultra-precision cutting model by the principle of the maximum specific energy of shear deformation and the mechanism of change of the shear modulus with...

本文利用剪切变形比能最大及单晶材料不同晶面晶向剪切弹性模量不同的原理，结合超精密切削模型，从理论上计算出不同晶面、不同晶向及不同刀具前角超精密切削条件下的剪切角，得到其在不同切削条件下的变化规律，并由此解释了切削加工中由KDP晶体各向异性所导致的工件表面粗糙度的各向异性。

Warden: That's a beautiful dog, but don't bring her again.

那是条漂亮的狗，但是不要再把她带来了。

You get up in the morning – no hangover!

你第二天早上起来的时候—不会宿醉！