焊工

The process of establishing neural network is as follows: two-layer neuronic network configuration is selected, S-type active function is used, input parameter of network are selected for thickness, preheat temperature, heat input and sampling point, output parameter of network is selected for fracture toughness property CTOD, learning algorithm of network is used for back-propagation algorithm.

本文选择了2层神经元的神经网络结构，采用S型激活函数，将板厚、预热温度、线能量、取样位置作为神经网络的输入，将环焊接头的裂纹尖端张开位移CTOD值作为网络的输出，通过BP算法的网络学习，采用VC语言建立了X70管线钢环焊接头CTOD与环焊工艺之间的神经网络。

The process of establishing neural network is as follows: input parameters of network are selected from thickness, preheat temperature, heat input, welding position and sampling point, output parameter of network is impact ductility CVN, two-layer neuronic network configuration, S-type active function and back-propagation learning algorithm are selected.

文章摘要：采用VC语言实现了X70管线钢环焊接头冲击韧性与环焊工艺之间神经网络结构的建立过程，将壁厚、预热温度、线能量、焊接位置、取样位置作为结构的输入，将环焊接头的CVN值作为结构的输出，选择了具有2层神经元的神经网络结构和S型激活函数及BP学习算法。

Public administration employs welders to perform maintenance welding that is done on utilities, bridges, government armories and bases, etc.

公共管理部门用焊工通过焊接来提供维护，主要范围在实际应用、桥梁、政府仓库和基地等。

These problems are related to improper brazing process for ceramic package.

这些问题与钎焊工艺条件不当有关。

The application of expert system in welding industry coveres the design or selection of welding process,diagnosis of weld discontinues or failure of equipment,estimation of welding cost,real time control,welding CAD and examination for welding operators.

专家系统在焊接领域的应用涵盖焊接工艺设计或选择、焊接缺陷或设备故障诊断、焊接成本估算、实时控制、焊接CAD和焊工考试等。

Shanghai Qiangkai Machinery Cutting Tools Co., Ltd. is located in the thousand-year aged Nanxiang Town in Jiading, which isspecializedinmanufacturingpreciseultra hard cutting tools and jewelling tools.

上海强凯机械刀具公司专业设计生产数控金刚石PCD刀具，常年招聘懂技术懂刀具的高级技师，年龄、性别、文品不限，精磨工、焊工、磨床工、铣床工、检验、包装、学徒工。。。。。。

The running tests of the alloy coatings on the blade of hydraulic turbine produced using oxy - acetylene spray welding procedure manifested that the average service life of many different hydraulic turbine obtained a lot improvement after spray welding.

应用氧乙炔喷焊工艺在水轮机叶片上制备合金涂层，经过数台机组多年的实际运行，表明该材料抗磨蚀性能优异，喷焊后的水轮机叶片的平均使用寿命得到大幅度提高。

With the new progress of computer technique, control theory, artificial intelligence and information technique, traditional design method for control system in the field of arc welding process has not been suitable for the requirements of the development .

随着计算机技术、控制理论、人工智能等信息科学的新进展，在弧焊过程控制领域内，传统的控制系统设计方法已不适应弧焊工艺发展的需要。

Subject: welder testing The ARC and TIG machines appear to be dual purpose so they should be OK 1.however, the photo's only showed one MIG machine and I would like to know how many MIG's they have.

主题：焊工测试电弧和TIG机器似乎是双重目的，所以他们应该会没事依照片上的，只不过是一个米格机，我想知道有多少架米格的，他们有。

So a vortex induced by an electrical discharge is a candidate for the carrier of ball lightning.

我已表明了涡形成，从一个电器放电，所以涡诱导电气放电是一个候选人为载体球闪电，又一批在巴西这里融化一块硅晶片中的一个弧形的焊工和得到焕发出球反弹大约为最多8秒。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。