66674 测量不确定度与误差的关系
技术  •  csxfjsw123  •  2008-01-25 15:49
40144 热电偶的使用简介
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96748 想要海克斯康的三坐标培训资料
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技术  •  Baike  •  2010-06-15 21:18
36922 硬度测试方法或标尺的选择
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35641 实验室安全标准
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72396 请教,简易的检验平板校准方法
技术  •  sybcttc  •  2011-02-18 09:37
69332 粉碎机常见的机械故障及处理方法
技术  •  1099418606  •  2011-02-18 10:37
62571 ASTM A523-96(2005) Standard Specification for Plain End Seamless and
技术  •  leunghb  •  2010-01-10 13:55
69266 ASTM A531/A531M-91(2006) Standard Practice for Ultrasonic Examination of
技术  •  leunghb  •  2010-01-10 14:35
71257 ASTM A532/A532M-93a(2008) Standard Specification for Abrasion-Resistant
技术  •  leunghb  •  2010-01-10 14:45
81006 ASTM A540/A540M-06 Standard Specification for Alloy-Steel Bolting Materials
技术  •  leunghb  •  2010-01-10 15:32
76195 ASTM A541/A541M-05 Standard Specification for Quenched and Tempered Carbon
技术  •  leunghb  •  2010-01-10 15:37
35613 ASTM A550-06 Standard Specification for Ferrocolumbium
技术  •  leunghb  •  2010-01-10 15:52
76288 ASTM A686-92(2004) Standard Specification for Tool Steel, Carbon
技术  •  leunghb  •  2010-01-30 06:34
69887 ASTM A688/A688M-08 Standard Specification for Welded Austenitic Stainless
技术  •  leunghb  •  2010-01-30 06:50
78897 ASTM A689-97(2007)e1 Standard Specification for Carbon and Alloy Steel Bars
技术  •  leunghb  •  2010-01-30 06:58
82447 ASTM A690/A690M-07 Standard Specification for High-Strength Low-Alloy Nickel
技术  •  leunghb  •  2010-01-30 07:04
75260 ASTM A691/A691M-98(2007) Standard Specification for Carbon and Alloy Steel
技术  •  leunghb  •  2010-01-30 07:24
61246 ASTM A693-06 Standard Specification for Precipitation-Hardening Stainless and
技术  •  leunghb  •  2010-01-30 07:32
79557 ASTM A696-90a(2006) Standard Specification for Steel Bars, Carbon, Hot-Wrought
技术  •  leunghb  •  2010-01-30 07:43
79566 ASTM A698/A698M-07 Standard Test Method for Magnetic Shield Efficiency in
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54497 ASTM A701-05 Standard Specification for Ferromanganese-Silicon
技术  •  leunghb  •  2010-01-30 08:05
83629 ASTM A703/A703M-08 Standard Specification for Steel Castings, General
技术  •  leunghb  •  2010-01-30 08:26
59741 ASTM A704/A704M-06 Standard Specification for Welded Steel Plain Bar or Rod
技术  •  leunghb  •  2010-01-30 08:32
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