模型 1.(仿制实物) model; pattern 模型所代表的实物 antitype; 模型展品scale model; 飞机模型 model of an airplane; 复制模型 replica; 原尺寸模型 mock-up; 机器的模型 pattern of a machine; 做一个汽船模型 model a steamboat; 他用粘土做模型。 he models in clay.2.(制砂型的工具) mould; pattern3.(模子) model set; mould pattern; layout; type; representation; cast; version; matrix; mock-up; shape
This paper established the cutting model of blade which is the important part of earth auger , and analysed the relationship between the parameters of geometrical structure and the force of cutting with matlab 本文对挖坑机的重要工作零件刀片建立了其纯切削模型,并运用matlab分析了刀片的结构几何参数对切削力的影响关系。
An ophthalmic excimer laser system used to correct wavefront aberration is presented . the conception and zernike representation of wavefront aberration of human eyes recommended by osa are introduced . the connection of wavefront aberration and ablation profile is analyzed and a model for calculating ablation profile to correct wavefront aberration is presented . because the ablation depth on the boundary is nonzero and irregular , we present a model for calculating ablation profile in a transition zone 深入研究了准分子激光像差矫正系统,采用美国光学大会推荐的像差的定义、像差的zernike多项式表示方法,定量分析zernike多项式表示的像差与角膜切削量的关系,采用主观式人眼像差仪测量像差,得出了像差矫正的角膜切削模型,并提出了一种采用过渡函数进行边界切削的方法,用于可调的过渡区切削量的计算,为人眼单色像差的矫正提供了理论基础。
The frozen coal destruction is the tension stress destroys , and establish the frozen coal cutting model in this foundation , obtains the cutting force , feeding force , tooth spacing according to the smallest energy principle . bring forward a rotary drilling mothod to unload the frozen coal , the broken ability is strong , without frozen depth limits , then obtains this machine working parameters , has combined this method with a grab and determined the plane of vehicle - carried rotary drilling movable coal - unloader 冻煤破坏是拉应力破坏,在此基础上建立了冻煤的切削模型,根据最小能量原理得到截割力,进给力和截齿间距的计算公式,分析得到截割力与切削厚度成正比,随着前角的增大而减小;截齿最优截距与截齿尺寸有关且与切屑厚度成正比;进给力随着截齿前角增大而增大的规律。