AUTOCAD secondary development the code, add the following few commands.

Intermediate and above titles, use AUTOCAD and three-dimensional mapping software.

中级以上技术职称, 会使用AUTOCAD及三维绘图软件.

Used mainly for editing AutoCAD drawings within the technical requirements.

主要用于编辑AutoCAD图形内的技术要求.

Do finite element analysis on the third shaft and gear shaft of shearer cutting unit. Then calculate the equivalent stress, such as cloud and the maximum stress value.

针对采煤机的薄弱环节截割部的截三轴和太阳轮进行有限元分析，得出其等效应力云图及最大等效应力值。

The Second Development of Gear Optimum Design Based on Pro/ E

齿轮优化设计的Pro/E二次开发

Having the second highest gear ratio.

有第二高的齿轮齿数比。

A note on the second order gear's method for stiff differential equation

刚性方程的二阶Gear方法的注记

A difference scheme was constructed in [ 3], which was equivalent to the second order Gear's method, and was solved by the simple iteration method.

在文献[3]中构造了一个与二阶Gear方法等价的差分格式，并采用简单迭代求解。

The Second Development of Gear Reducer CAD System by Visual Basic Based on AutoCAD

基于AutoCAD用VB二次开发圆柱齿轮减速器CAD系统

On the basis of the elastic-hydrodynamic lubrication theory proposed by the English engineers Dawson and Higginson the author has described and made a numerical analysis of the scoring of the main gear reduction unit second gear, Proposals aimed at alleviating scoring are also given.

本文以英国道森与希金森的弹性流体动力润滑理论（EHD）为基础，对主齿轮减速器第二级齿轮擦伤的形成进行了计算分析和阐述，并对抑止擦伤提出了建议。

Shift from the first gear to the second gear

从第一排档转到第二排档

Using the Visual C++ developing tool, the thesis implements the CAD/ CAM system for involute gear based second development in UG.

利用Visual c++开发工具，以UG软件为二次开发平台，开发了直齿锥齿轮模具电极CAD/CAM软件。

According to an agreement between the two families, much of last year's formal wedding needed to be repeated before the couple changed into traditional gear for the second part of the ceremony.

根据2个家庭的协议，在新郎新娘换上传统服装进行仪式的第二部分之前，去年举行的正式婚礼中的很大一部分需要再进行一次。

It includes Trapezoidal, Backward Euler, Forward Euler, Simpson and Gear Second Order methods.

离散方法包括梯形法、向后欧拉法、向前欧拉法、Simpson法和Gear Second Order法。

My hairdryer has three settings-high, medium and low.

我的吹风机有三挡&高温、中温和低温挡。

The traffic was so slow I couldn't get above third.

路上的车辆跑得慢极了，我顶多只能用第三挡。

This is like a car that is in third or high gear.

这就相当于三挡或高速档。

I braked at the second corner and changed down to third.

我在第二个拐弯处踩了刹车，挂上三挡。

Pull the handbrake, shift the third gear to the neutral gear.

拉起驻车手刹，三挡换空挡；

As for the upper Pleistocene cohesive soil, the lateral and tip resistance can be determined according to the code after raising the liquidity index by one or half a level.

上更新统粘性土侧阻力、端阻力亦可据实测液性指数提高一挡或半挡按桩基规范选取；

Temperature uniformity is greatly improved by a perforated heat shield which absorbs radiant heat and distributes it more evenly.

温度均匀，大大提高了一挡热板的穿孔吸收辐射热，分配更均匀。