morphogenetic stimulus是什么意思

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用法例句

Metal cutting burr formation is a highly complicated behavior of material deformation.

金属切削毛刺的形成过程是一个非常复杂的材料变形过程 ,毛刺的形成直接影响着精密零件的棱边质量 有必要对毛刺的预报及控制进行深入、系统的研究 影响毛刺形成的因素众多 ,建立三维切削毛刺形成的模型是非常困难的 本文论述了建立二维直角自由切削中两侧方向毛刺形成的数学—力学模型的方法、毛刺控制图表及毛刺专家系统的研究进展和应用 ,提出了毛刺分类标准研究的必要

Study on Forming Model and Type Change of the Feed-Direction Burr in Turning

车削加工毛刺形成模型及其形态转换的研究

The Finite Element Model and Mechanism Analysis for Burr Formation in Metal Cutting

金属切削毛刺形成的有限元模型及机理分析

Mechanism and Control Methods of Burr Formation in Metal Cutting Process

金属切削过程中毛刺形成机理及控制方法的研究

Forming Mechanism of Tooth Flank Burr in Cutting Gear

齿轮齿形切削加工中的毛刺生成机理

The formation and critical conversion of the cutting-direction burr

切削方向毛刺/亏缺的形成及其界限转换

A modified calyx, composed of scales, bristles, or featherlike hairs, in plants of the composite family, such as the dandelion and the thistle.

冠毛在例如蒲公英和蓟等菊科植物中的一种由鳞叶、刺毛或羽毛状茸毛形成的修饰性花萼

forming process and mechanism of cutting direction burr under orthogonal cutting are simulated and analyzed;

仿真并分析了正交切削条件下切削方向毛刺的形成过程与机理；

These burrs, due to the tendency to have pointed shapes, punch holes in and tear rubber protective clothing.

尖形的毛刺可能穿透并刺破橡胶保护物。

gear deburring and tooth pointing machine

齿轮去毛刺及齿顶成型机

Study on the Forming Principle of the Cutting Burr in Turning

车削加工中切削毛刺生成机理的研究

formative cell

【动】形成细胞, 毛原细胞

corals forming featherlike colonies.

形成羽毛状群体的珊瑚。

DISCUSS OF BURR MECHANISM, SHAPE AND DEBARRING METHOD

毛刺发生机理与形态及去除方法的探讨

(of plants such as dandelions and thistles) having pappi or tufts of featherlike hairs or delicate bristles.

（指类似蒲公英和蓟之类的植物）有由像羽毛一样的毛发或者精致的刺毛组成的冠毛或者丛毛。

9 cases had coarse long spiculation and among them 7 cases were irregular sharps or triangular and polygonal sharps.

粗长毛刺征9例,其中7例病灶形态呈不规则形和三角、多角形;

The flagellar arrangement on an organism.

鞭毛形成，鞭毛排列鞭毛在生物体上的排列

A plug of keratin and sebum within a hair follicle that is blackened at the surface.

黑头粉刺在带毛小囊内由角朊和脂肪组成的粉刺，表面呈黑色

The Research of Puncturing Angles and Points in Percutaneous Vertebroplasty

经皮椎体成形术穿刺角度和皮肤穿刺点的研究