IEC 60145:1963 Var-hour (reactive energy) meters,无功电能表. 1.SCOPE The present recommendations apply only to newly manufactured induction type var-hour meters for the measure...
IEC 60152:1963 pdf download,Identification by hour numbers of the phase conductors of 3-phase electric systems. 三相电系统的相导线按小时数进行识别 1.ob
IEC 60144:1963 pdf download,Degrees of protection of enclosures for low-voltage switchgear and controlgear 低压开关设备和控制设备外壳的防护等级 1.Scope This recomm...
IEC 60100:1962 pdf download,Methods for the measurement of direct interelectrode capacitances of electronic tubes and valves. 电子管和电子阀直接电极间电容的测量方法...
IEC 60096-2:1961 pdf download,Radio-frequency cables - Part 2: Relevant cable specifications. 射频电缆 第2部分：相关电缆规范...
IEC 60134:1961 pdf download,Rating systems for electronic tubes and valves and analogous semiconductor devices. 电子管和电子管以及类似的半导体器件的评级系统。...
ASME B5.11-1964 pdf download 主轴鼻和多轴钻头可调适配器. Spindle Noses And Adjustable Adapters For Multiple Spindle Drilling Heads. This Standard is to provide the mean...
ASME PTC 7.1-1962 pdf download 活塞泵 Displacement Pumps. 1.01 This code provides standard directions for conducting and reporting tests on displacement pumps. 1.02 The ob
ASME Y32.11-1961 pdf download,Graphic Symbols For Process Flow Diagrams In Petroleum And Chemical Industries 石油和化学工业中工艺流程图的图形符号. This preliminary...
ASME B18.11-1961 (R2017) pdf download 微型螺钉,Minature Screws. ASME B18.11-1961 establishes head types, their dimensions, and lengths of slotted head miniature screws, threaded...
