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全局置顶 隐藏置顶帖 下载有问题?使用本站过程中遇到问题,请在此反馈! attach_img  ...23 标准管理员 2018-2-10 14:11 2213852 向前走_NXUF 2026-5-22 15:39
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IEC 61158-5-12-2014 Industrial communication networks - Fieldbus specifications - Part 5-12: Application layer ser... attachment 夏天天 2025-7-26 10:40 21441 QQ2965677080 2026-9-30 23:22
IEC 61158-1-2014 Industrial communication networks - Fieldbus specifications - Part 1: Overview and guidance for t... attachment 枫凌 2025-10-14 11:13 23166 何以笙箫默 2026-9-30 19:03
IEC 61158-4-20-2014 Industrial communication networks - Fieldbus specifications - Part 4-20: Data-link layer proto... attachment 724304950 2025-7-23 00:29 21411 壹ID 2026-9-30 13:41
IEC CISPR 13-2015 收音机和电视机及有关设备无线电骚扰特性测量方法和限值 attachment a1911388279 2025-8-20 21:08 2847 65225196 2026-9-30 11:55
IEC 60695-2-13-2014 着火危险试验.第2-13部分:灼热金属线/热线的试验方法.材料的灼热金属线着火性试验方法 attachment 莣菈i 2025-7-17 13:59 2453 724304950 2026-9-29 14:19
IEC 61158-6-9-2014 Industrial communication networks - Fieldbus specifications - Part 6-9: Application layer proto... attachment z1913549371 2025-7-22 18:34 2694 wangsino1 2026-9-28 02:31
IEC 60068-2-78-2012 环境试验 第2-78部分:试验 试验Cab:恒定湿热 attachment 疼过痛过 2021-4-11 13:18 31572 2464350840 2026-9-28 01:53
IEC 62770-2013 电工用液体 变压器和类似电气设备用未使用过的天然酯 attachment mxy123 2021-4-12 15:52 41396 y3677161 2026-9-28 00:52
IEC 60417-SN-2014 设备用图形符号 attachment 包包大人 2025-7-14 21:02 22639 842025450 2026-9-27 00:32
IEC 61158-5-24-2014 Industrial communication networks - Fieldbus specifications - Part 5-24: Application layer ser... attachment 45621123 2025-7-17 00:14 21570 2532155 2026-9-16 04:55
IEC 61158-3-4-2014 Industrial communication networks - Fieldbus specifications - Part 3-4: Data-link layer service... attachment sadkjashdijas 2025-9-16 17:24 21215 梓宇 2026-9-11 14:38
IEC 61158-5-3-2014 Industrial communication networks - Fieldbus specifications - Part 5-3: Application layer servi... attachment ermayang 2025-6-12 23:23 42223 3433yw1k45 2026-9-7 08:53
IEC 61158-2-2014 Industrial communication networks - Fieldbus specifications - Part 2: Physical layer specificatio... attachment 散人丶小白 2025-8-5 11:25 4455 现实太狗66 2026-9-6 21:45
IEC 61857-31-2017 电气绝缘系统短时间热评估程序第31部分:设计寿命为5000 小时或更少的应用 attachment 肖一帆 2021-4-12 16:30 32677 xu775520 2026-9-4 22:46
IEC 61158-6-19-2014 Industrial communication networks - Fieldbus specifications - Part 6-19: Application layer pro... attachment 804720156 2025-6-14 21:01 22055 千千 2026-8-24 03:47
IEC 61158-5-22-2014 Industrial communication networks - Fieldbus specifications - Part 5-22: Application layer ser... attachment 九爷 2025-10-11 10:06 2333 傻逼启航 2026-8-6 05:43
IEC 60617-SN-2014 Graphical symbols for diagrams attachment 17097491535 2025-7-22 16:58 23077 敖兰娜 2026-7-31 18:15
IEC 61158-5-2-2014 Industrial communication networks - Fieldbus specifications - Part 5-2: Application layer servi... attachment 1412377576 2025-8-27 20:32 32067 社会你胖虎 2026-7-27 10:34
IEC 62321-8-2017 电化学产品中某些物质的测定 第8部分:气相色谱-质谱法测定聚合物中的邻苯二甲酸酯 气相色谱-质谱法 使用热解器/热解吸附件(Py-Td-Gc-Ms)的气相色谱-质谱法 attachment 95465456 2021-12-6 00:54 32550 sdafa 2026-7-7 12:03
IEC 61158-6-5-2014 Industrial communication networks - Fieldbus specifications - Part 6-5: Application layer proto... attachment dd123456112 2025-8-8 19:33 21555 asdad 2026-6-24 02:40
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