In this paper, the property requirements of copper-based lead frame material used in intergrate circuit are reviewed,and the uppermost requirement being electricity conductivity and strength is pointed out.
综述了集成电路对铜基引线框架材料的性能要求,指出好的导电导热和强度性能是引线框架材料最主要的性能要求;讨论了铜基引线框架材料的国内外研究现状,指出我国的引线框架材料无论是质量还是数量都与其他工业发达国家有很大的差距,并指出微合金化铜基材料具有成为高强高导引线框架材料的潜力。
Pressure loss or updip of barrows during tension stringing: analysis and precautions;
张力架线时滑车失压或上扬分析及预防措施
On basis of calculating theory on chain suspension of OCS, analyzes the technical terms in realizing at-a-time stringing the messenger wire, obtains the formula on calculating the installation height of tensioning weight of messenger wire and concludes 8 key construction points for at-a-time stringing the messenger wire.
以接触网链形接触悬挂的计算理论为基础,分析了实现承力索架线一次到位的技术条件,得出了计算承力索张力和补偿坠砣安装高度的计算公式,并总结了承力索一次到位施工的8个施工要点。
The precast conductor and precast ground wire with fabricated stringing process are used,which enhences its efficiency and reduces the amount of work high above the ground and labour intensity.
在输电线路架线施工中,对孤立档进行架线施工时采用预制导、地线的装配式架线施工工艺,可以提高施工工效,减少高空作业量,降低劳动强度。
reel-and-cable trolley locomotive
电缆架线两用电机车
battery trolley locomotive
蓄电池架线两用电机车
trolley-cum-battery locomotive
架线蓄电池两用电机车
Technical specification for construction of cross power transmission line in installing the conductor
跨越电力线路架线施工规程
ACSR-720/50Large Cross-section Analysis of Wire-line Technology
ACSR—720/50大截面导线架线工艺分析
Stringing Construction of GTACSR288 Gapped Heat Resistant Up-Rating Conductor
GTACSR288间隙型耐热倍容量导线的架线施工
Constructing Method of Crossing over 110kV Baoyin and Tianwu Transmission Line without Power Interruption
不停电跨越110kV保阴线、天五线架线施工方法
overhead and underground system
架空线和地下线系统
A frame for holding bobbins or spools in a spinning machine.
轴架纺纱机里用来固定线轴的柜架
Cost analysis of 24m double track box girders erection by bridging machine;
架桥机架设24m双线箱梁费用分析
interconnect tape
带有引线架的互连带
ultraviolet lamp with stands
紫外线灯,配有灯架
uniselector distribution frame
旋转式选择器配线架
infrared lamp with stands
红外线灯,配有灯架
Install ABS sensor wires into brackets.
安装ABS感知器线到支架。
dual in line lead frame
双列直插式引线框架
Technique and cost exploration of second line beam erection by making use of the existing line;
利用既有线架设二线梁的架设技术与造价探讨
A short length of cable used to effect a connection on a distribution frame.
配线架上用于连接的短电线。