钻尖

Leaves in opposite pairs, thin coriaceous, oblong, or phi needle-shaped, long 6-14 cm, the top length gradually sharp, pointed or slightly blunt wedge base, edges wavy or light wavy; petiole length 8-15 mm; stipule wide and triangular, was born in the Ministry of young vine at the top of drill-like long-tip , was born in the old vine, 3-6 mm long, the top regular convex tip.

叶对生，薄革质，矩圆形或披针形，长6—14厘米，顶端长渐尖，基部楔尖或略钝，边缘波状或浅波状；叶柄长8—15毫米；托叶宽三角形，生于幼枝上部的顶端钻状长尖，生于老枝上的长3—6毫米，顶端常凸尖。

Wood auger bit, bell hanger, brand wood drill, center drill, cutting saw, hole saw.

7E27(E2E27)木工支罗钻，三尖木工钻，中心钻，锯片，带孔钻，开孔器。

Based on the machine development, a research and analyses of auger drill bits with different kinds of drill tips and soil cut blade angles were carried out in tree planting field.

在设备研制成功的基础上，对钻孔机钻头不同钻尖、不同切土刀刃角进行了实地试验研究和分析。

The so-called cutter location point, the flat end mill tool axis refers to the point of intersection with the bottom tool; for ball-end milling is the ball part of the core; for tools is the tip; the drill is the drill point; for wire electrode cutting machine, it means that the axis line of the electrode surface and the focus of parts.

所谓刀位点，对于平底立铣刀是指刀具轴线与刀具底面的交点；对于球头铣刀是指球头部分的球心；对于车刀是指刀尖；对于钻头是指钻尖；对于线电极切割机床，则是指线电极轴心与零件面的焦点。

Basic structure and operation principle of the parallel grinder for helical drill point grinding is presented.

给出螺旋面钻尖刃磨机床的基本结构及其工作原理。

The paper discusses the principle of automatic loading and unloading system of CNC drill point grinder,and design an reliable PLC controlling system through analyzing the mechanism and the process of load-ing and unloading.

论述了数控钻尖磨床自动上下料机构的原理，通过对上下料机构及过程的分析，设计了一种合理可靠的自动上下料及刃磨的PLC控制系统。

ZZM-A drill grinder simple structure, easy operation. One setup to complete grindings on drill web and chisel edge.

ZZM-A型钻头磨刀机结构简单，使用方便，一次装夹就可以完成钻头的钻尖和横刃的修磨。

It will promote the progress of hole making thechique and accelerate the automatization course of the tool production in our country. In addition, the author analyzes a drill grinding unit on a machining center and present a new grinding model for grinding four-plane facet drill points, which will be a new way of drill grinder design.

此外，作者还分析了一台加工中心上的钻头刃磨装置，提出了一种两轴合成四平面钻尖的刃磨理论，并对其应用前景进行了初步探讨，为钻头刃磨方法和刃磨机的研制开辟了一条新的途径。

The test also shows that torque has not big change by using difference augers'tip and different angle of soil cutting blade on the end of auger's spiral wing.

不同钻头钻尖结构，不同切刀刃角在3种典型造林地的试验表明，这些因素对钻孔阻力矩的影响很小。

Through the analysis of the formation principle of helical curves , the uniform equation of taper surface helical curves is established and the optimization analysis is made of the screw wing cutting edge of the taper spiral auger s tip .

通过分析螺旋线的形成原理，建立了锥形面螺旋线的统一方程，并对圆锥螺旋钻尖的翼片刀刃部分进行了优化分析。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。