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1981 year China issued GB standards list

     
GB/T 2880-1981
Hydraulic fluid power--Cylinder rod and piston seals for reciprocating applications--Dimensions andtolerances of housings--Narrow section series
液压缸活塞和活塞杆 窄断面动密封沟槽尺寸系列和公差
GB/T 2689.2-1981
Life test and acceleration life test charts--Evaluation of their Weibull distributions
寿命试验和加速寿命试验的图估计法 (用于威布尔分布)
GB/T 2683-1981
Test chart for facsimile transmission
传真测试样张
GB/T 2426-1981
Breeding stock--Xinjiang fine-wool sheep
新疆细毛羊
GB/T 2789-1981
Technical requirements for network interface for the analogue microwave relay communication systems
模拟微波接力通信系统网路接口基本技术要求
GB/T 2787-1981
Keyboard for international information processing interchange using the 7-bit coded character set--Alpha-numeric area
信息处理交换用七位编码字符集键盘的字母数字区布局
GB/T 2432-1981
Gasoline--Determination of tetraethyl lead content--Complexometric titration method
汽油中四乙基铅含量测定法 (络合滴定法)
GB/T 384-1981
Determination of calorific value of petroleum products
石油产品热值测定法
GB/T 2689.1-1981
Constant stress life tests and acceleration life tests--General rules
恒定应力寿命试验和加速寿命试验方法 总则
GB/T 2625-1981
Process detection and controlflow chart--Symbols and letter codes
过程检测和控制流程图用图形符号和文字代号
GB/T 2541-1981
Petroleum products--Computation table for viscosity indices
石油产品粘度指数算表
GB/T 2689.4-1981
Life test and acceleration life test--Optimal linear deflection-free--Evaluation of Weibull distributions
寿命试验和加速寿命试验的最好线性无偏估计法(用于威布尔分布)
GB/T 2689.3-1981
Life test and acceleration life test--Simple linear deflection-free--Evaluation ofWeibull distributions
寿命试验和加速寿命试验的简单线性无偏估计法(用于威布尔分布)

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