摆

You did it because you understand the enormity of the task that lies ahead.

你这样做，是因为你明白摆在面前的任务的艰巨性。

An epicycloid in which the rolling circle equals the fixed circle .

旋转的圆和固定的圆大小一样时产生的外摆线。

Construct rotating nephroid and three-cusped epicycloid while remaining orthogonal to each other.

作旋转的肾脏线和旋转的三瓣外摆线，且彼此维持正交。

In this chapter the author expounded the origin of the concept of Free-form generators, pointed out that it is the certain result of the development of synchronous multi-axis CNC technology, explained the basic principle of the machining of extended epicycloid bevel gears on Free-form generators and the methods for both hardware and software implementation.

论文第2章是全文的基础，在这一章中，作者论述了Free-form型机床概念的由来，指出它是多轴联动数控技术发展的必然结果；阐述了Free-form型机床加工延伸外摆线锥齿轮的基本原理及其软硬件实现方式；将机床控制系统分解为包含两根虚拟主轴的有两组独立联动的八轴八联动系统；建立了Free－form型机床的数学模型；推导了展成运动速度、加速度及高阶加速度的表达式，为后续的理论分析奠定了基础。

Thus the author established a unified theorem of the shaping of tooth flank, which can be applied to both Free-form and traditional cradle machine tools, unified the theories of both circular-arc and extended epicycloid bevel gears.

为此，作者建立了齿面成形的统一理论，它适合于Free-form型和传统摇台类两种机床类型，并将弧齿锥齿轮和延伸外摆线锥齿轮统一在了一起。

In this paper, taking the equdistant curve of short spoke epicycloid as original tooth profiles, the conjugate internal gear tooth profiles (quasi-cycloid) and the pinion cutter tooth for cutting the internal gear are obtained.

本文以短幅外摆线的等距线为原始齿廓，求取了与之共轭的内齿轮齿形及切削这种内齿轮的插齿刀齿形，并寻求了用三圆弧替代插齿刀齿形的方法。

"If you wish to," said Wendy, keeping her head erect this time.

"要是你也愿意的话。"温迪说，这一回她把头摆得端端正正的。

How to speed up the Hunan Province tourism's development to establish the well-known traveling brand has become an important question which the erector is able to face with.

如何加快湖南省旅游业的发展，建立起知名的旅游品牌则成为摆在建设者面前的一个重要问题。

To be released, as a tooth on an escapement wheel in a watch.

松开而开动放松、开动，如钟表上的摆轮的一个齿

Guilin is a very local features escargot snacks a day, selling at the night market and the high and low grades can eat restaurants.

桂林田螺是很地方特色的小吃，每天在夜市摆卖及中高低档次餐厅也均可吃到。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。