It also intro duces the die structure design and its character for multi-station progressive die.

The punching process of the lead frame was analyzed, the multi-position progressive die was designed.

分析了引线框的冲压工艺性, 设计出了 多工位 级进模.

This paper will introduce progressive die of the commutators for micromotor.

本文将就微型马达精密换向片的量产模具介绍说明.

He seems to have difficulty relating as others and expressing his feelings.

他似乎很难与他人沟通和表达自己的感情.

Older children may have difficulty learning a foreign language.

大一些的小孩也许学外语时会有困难.

Sometimes it happens when I have difficulty falling asleep.

有时它一发作我就难以入睡.

The patient was perceived to have difficulty in standing and walking.

据观察所见,病人站立和行走都有困难.

The witness appear to have difficulty in remember what have happen.

证人在回忆发生的事情方面似乎有困难.

You'll have difficulty trying to get hold of a bike.

你会发现很难抓牢自行车.

Very bad. I have difficulty in breathing.

糟透了, 我呼吸有些困难.

This paper deals with the periodic optimal control governed by a degenerate nonlinear diffusion equation.

摘要研究由退化非线性扩散方程所支配系统的周期最优控制问题.

In this paper, A modified Dennis scheme for the steady-state convection-diffusion equation is proposed.

本文提出了求解定态对流扩散方程的修正Dennis格式.

The transposition and attenuation actions of flood wave are defined by of convection and diffusion equation.

根据对流扩散方程,从数学上定义了洪水波的推移和坦化作用.

The concentration field of suspended sediment is calculated by using diffusion equation.

用剖面二维悬移质扩散方程求解浓度场.

Besides, the effect of diffusion coefficient on interlaminar shear stength of composites is investigated.

此外, 还研究了扩散系数对芳纶纤维复合材料的层间剪切强度的影响.

The effective diffusion coefficient and rate constant of intra particle transport were calculated.

求出了颗粒内有效扩散系数和颗粒内扩散速率常数.

STUDIES OF THE REACTOR FILLED WITH ORIGINAL PARTICLE CATALYST AND EFFECTIVE DIFFUSION COEFFICIENT.

浸入式折光计测定啤酒原麦汁浓度.

The hydrogen diffusion coefficient had the different performance in different stages of cycling test.

研究发现,合金在循环曲线各个阶段的氢扩散系数均不相同.

Diffusion coefficient of copper in barrier coating is a considerable parameter for evaluating barrier ability.

铜在防渗铜镀层中的扩散系统是评价镀层防渗铜能力的重要参数.

A two-dimensional numerical method is presented for predicting the chloride diffusion coefficient of cement paste.

提出了水泥石氯离子扩散系数预测的二 维 数值方法.

It indicates the pore pressure was significantly affected by the permeability coefficient and the diffusion coefficient.

指出混凝土的渗透系数或扩散系数对于孔压有着重要影响.