查询词典 envelope folder

The principles of forming toroidal gear have been studied and the trajectories of the machining tools have been obtained. Then, the generating method for manufacturing of the internal toroidal gear by using the envelope method has been proposed. Further, spatial meshing profile normal theory is applied to design the profile of the proposed hobber, and the fix angles of the hobbing cutter have been confirmed.

对内超环面齿轮齿廓的形成原理进行研究，得出加工刀具的运动轨迹曲线，提出包络法加工内超环面齿轮，并采用空间啮合齿廓法线法设计刀具廓形，确定刀刃切削角度，完成基于SolidWorks的刀具体三维造型设计。

You should write your home address on the envelope.

你得把你们家的地址写在信封上。

In this paper it has been proven that for Cauchy problem of quasi-linear homogeneous partial differential equation its solution always has discontinuity , and the trace of discontinuity is just the envelope of characteristic lines.

本文证明对于拟线性齐次偏微分方程的Cauchy问题，其解总具有间断性，且发生间断的点的轨迹，恰巧就是特征线的包络，另外给出了一个特例，否定了这类解必定会出现多值性的定性论断，从而使构造广义解的理论面临困难。

TL494CD Pinout: Enhanced performance, new generation, high-voltage, high-speed switching npn transistor with an integrated damper diode in a plastic full-pack envelope intended for use in horizontal deflection circuits of colour television receivers.

TL494CD引脚说明：增强的性能，新的一代，高电压，高速开关在一个塑料全包在彩色电视接收机水平偏转电路用途信封阻尼二极管集成NPN晶体管。

A hotbox method is devised for field measurements of envelope s thermal resistance in non-heating seasons.

本文讨论了采用热箱法检测建筑物围护结构的热阻以实现非采暖季进行检测。

"If I write to him, he will fold my letter with the envelope inside, and indorse it with my name and the date of its arrival," the young man would say, and call everybody in the house to witness that it had not moved him to one softening recollection or one pitiful thought.

这年轻人会说：如果我写信给他，他会把我的信连同信封一起加封，外面注明我的名字和收到该信的日期，然后叫屋子里所有的人都来亲眼目睹一番：这信并没有打动他，并没有引起他一丝一毫软心肠的回忆，或一丝一毫怜悯的思想。

Trend envelope forecasting method is a forecasting method which was produced by many subject intersecting synthetically.This method was oriented the concept of infimum and supermun in mathematica analysis.This model which was decided dependedon program problem,and whose means have the aim of the method of statics analysis.

趋势包络预测方法是一种由多学科综合交叉而产生的预测方法，它的思想源于数学分析中确界的概念，它模型的确定依赖于规划问题，它预测的手段借助于统计分析的方法。

After carefully wiping the oilcloth, he got a sheet of squared paper from the drawer of his bedside table; after that, an envelope, a small red wooden penholder, and a square inkpot with purple ink in it.

他从床头柜的抽屉里拿出一张方格纸，一个黄信封，一支红木杆的蘸水钢笔和一小方瓶紫墨水。

The basic theory and the latest research progress in this field are presented in this paper,and the further research directions in application of manifold PCM, studies on insulation properties of building envelope with PCM and inosculation of PCM and building material are pointed out.

维持室内温度在一定范围(24℃～28℃)内是保持室内环境舒适度的关键。随着季节的变化和昼夜的交替室外环境温度是不断地波动的，为了避免这种波动对室内环境舒适度的影响，人们常常利用空调和供暖系统，但相应的能耗随之增加，环境污染也随之加剧。

As WSSV infection is based on the interaction of the virus envelope and host cells, it became an important control strategy to figure out the mechanism of the process and then interdict it.

白斑症病毒病是危害对虾养殖业健康发展的主要疾病之一，十余年来国内外学者已对其进行了大量研究。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。