The notoriously poor quality of some school toilet paper has long been the butt of many jokes, but the move angered parents.
虽然有些学校提供的卫生纸质量出了名的差,长期以来一直遭人耻笑,但要求学生自带手纸的做法还是让家长们很生气。
Butt whether written down or not, stories move—from hand to paper to eye to mouth, from mouthto ear.
不论是以书面形式还是口头形式,故事从手头传到纸上,再从眼睛传到口头,又从口头传到耳朵。 %。
In this paper, on the base of the study of flash butt welding theory, a new intelligent control system of rail flash butt welding is developed.
本文基于闪光焊接理论研究及钢轨闪光焊接的工艺要求,设计了一种智能控制的钢轨闪光焊焊接系统。
By the theory of elastoplastic bend, this paper prowents a method to calculate out - of -- plane restraint and reverse deformation that are made use of to remove angle deformation in butt joints.
本文应用弹塑性弯曲理论提出了一种消除焊接对接接头角变形的平面外拘束力的计算方法,计算了极限拘束力、拘束长度和反变形的量值,并通过试验验证了方法的有效性。
In this paper, the defects appeared in flash butt welding for HSS cutting tools have been analyzed. And the effective resolving way has been put forward.
本文对高速钢刀具闪光对焊经常出现的主要缺陷问题进行了具体分析,并提出了有效的解决措施。
This paper describes the development of high - pressure steel butt welding bends with straight ends.
本文概述钢制对焊高压带直段弯头的开发。
The fatigue and ultimate strength analysis of hull structure with two different butt-welding lines distribution was researched in this paper.
对两种不同对接焊缝布置下的船体结构进行疲劳强度和极限承载能力分析。
The paper introduced a PLC network (MELSECNET/MINI)control system which is used for controlling flash butt welding machine set.
采用可编程控制器(PLC)的联网功能,构成一个MELSECNET/MINI网络,用于控制闪光对焊机组。
This paper, based on analyzing the process of Cu-Al pipe butt welding, discussed the design of the executive system and control system for PLC controlled Cu-Al pipe butt welder.
在分析了铜铝管焊接工艺过程的基础上,重点论述了铜铝管对焊机执行系统和控制系统的设计。
Based on national practical situation in the paper tire tube process's main problem such as scorch life and butt joint, which affect severely tire tube's quality was mainly studied.
本论文基于国内实际生产情况,重点研究了内胎生产过程中经常遇到的严重影响产品质量的两大难题,即焦烧及接口开。
Comparison between radiographic and ultrasonic detection of butt welding on gas pipelines is made in this paper, and some advantages and shortcomings of these methods are analyzed.
对射线、超声和超声波成像几种检测方法检测管道焊缝的优缺点进行比较,对超声波配合超声成像检测现行管道焊缝的可行性进行了探讨。
In this paper, the residual welding stresses in a low carbon steel girth butt welded pipe are calculated with a nonlinear finite element code ADINA.
本文利用ADINA非线性分析有限元程序,对低碳钢管道环焊缝接头焊接残余应力进行计算。
This paper introduces the ultrasonic inspection technics in the butt welded-joints of T91 small diameter tubes, and discusses its technical feasibility.
介绍t 91钢小径管焊接接头的超声波探伤工艺,并就工艺的可行性进行探讨。
Research status and developing prospect of spot welding butt strip is systematically introduced in this paper.
系统地介绍了点焊拼接板的研究现状和发展前景。
The paper presents the life evaluating process of girth butt welds by hot spot stress method and the calculation methods of hot spot stress range.
给出了采用热点应力法进行铸钢节点环形对接焊缝疲劳寿命估算的全过程。
In this paper, buckling of thin plate due to butt weld is investigated using inherent strain method as an equivalent load.
提出了基于固有应变对接薄板失稳分析的基本方程。
A control system of a butt fusion welding machine for PE pipe is introduced in this paper.
介绍了一种聚乙烯管道热熔焊机控制系统。
The coupling between butt fiber and cone lensed fiber is described in this paper. A theoretical model is presented and the formula of coupling efficiency is given.
建立了平端光纤与锥端微透镜光纤对耦合的理论模型,得到耦合系数的计算公式。
In this paper the Submerged Arc Welding procedures for Q420E butt joint of Songhua River Stayed-cable Bridge were investigated.
对松花江斜拉大桥钢梁用q 42 0e厚板对接接头的埋弧焊焊接工艺进行了研究。
In this paper the Submerged Arc Welding procedures for Q420E butt joint of Songhua River Stayed-cable Bridge were investigated.
对松花江斜拉大桥钢梁用q 42 0e厚板对接接头的埋弧焊焊接工艺进行了研究。
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