Dynamic analysis and research of forehand close-to-table counter-driving forward;
孔令辉正手近台反冲前冲弧圈球技术的运动学分析
Based on observing forehand attack technique of beginner in table tennis education,this paper analyzes the ordinary mistake and reason of forehand attack and puts forward some measurements for improving the accurate.
根据在教学中对乒乓球初学者正手攻球情况的观察,分析正手攻球常见的错误、原因,并提出了提高准确性的几点措施。
Inspection report mentioned very few hand soldering related non-conforming.
检查报告只有少量与手焊有关不良品.
Three welding modes : DC pulsed TIG, DC MMA.
集直流氩弧焊,脉冲氩弧焊,直流手工焊于一体。
Three welding modles:DC TIG,PulsedTIG,DC MMA.
集直流氩弧焊、脉冲氩弧焊、直流手工焊于一体。
Research on Welding Seam Formation Characteristics of Manual Arc Welding and CO_2 Gas Protection Welding
手工电弧焊与CO_2气体保护焊焊缝成形特征研究
gas-operated welding blowpipe, high-pressure-type, hand-held
气动熔焊喷焊器,高压型,手持式
Weld studs for manual welding
GB/T902.1-1989手工焊用焊接螺柱
Suitable for MMA, argon arc, arc gouging welding.
可用于手工电弧焊、弧焊、弧气刨.
The Welding of Printed Board--On Teaching “Handwork” Welding Techniques;
印制板焊接——“手工”焊接技术教学
Swing Welding Technology of TIG Root Welding on Heavy Thickness Pipe
厚壁管TIG根焊摇摆手法焊接技术
gas-operated (excl. hand-held) blowpipe
气动喷焊器(手持式除外)
manually operated electric butt-welding machine
手工操作式电动对焊机
nozlle for atomic hydrogen hand welding equipment
原子氢手工焊设备喷嘴
Alternating hand welding torch; applicable to weld universal carbon steel. Direct hand welding torch: applicable to weld stainless, constructional steel.
交流手工焊:适用于普通碳钢的焊接。直流手工焊:适用于不锈钢,结构钢的焊接。
What Does the Quality Welding Have to Do Wifh the Width and Height of Pipeline Manual Arc Welding
管道手工电弧焊焊接宽度、高度与焊接质量的关系
The Welding Experimentation of 12Cr1MoVG Tube Platen and Analysis of Manual Arc Welding Cracks
膜式窄节距12Cr1MoVG管屏埋弧焊接试验及手工电弧焊补焊裂纹分析
The Research on Teaching System and Seam Tracking System of Group Welding Arm-and-hand;
组焊机械手的示教系统与焊缝跟踪系统研究
Analysis and Preventive Measures of Arc Weldment Deformation
手工电弧焊焊件变形的原因及防范措施
Analysis on welder's operating methods influencing quality of fillet weld of stainless sheet plate
焊工操作手法对不锈钢薄板角焊缝质量的影响
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