微信公众号随时随地查标准

QQ交流1群(已满)

QQ群标准在线咨询2

QQ交流2群

购买标准后,可去我的标准下载或阅读

定价: 59元 / 折扣价: 51 加购物车

在线阅读 收 藏

FOREWORD This amendment has been prepared by IEC technical committee 72: Automatic controls for household use. AVANT-PROPOS Le présent amendement a été établi par le comité d'études 72 de la CEI: Commandes automatiques pour appareils domestiques.

定价: 228元 / 折扣价: 194

在线阅读 收 藏

FOREWORD This amendment has been prepared by IEC technical committee 72: Automatic controls for household use. The text of this amendment is based on the following documents: FDIS: 72/522/FDIS Report on voting: 72/533/RVD Full informatio

定价: 273元 / 折扣价: 233

在线阅读 收 藏

FOREWORD This amendment has been prepared by IEC technical committee 72: Automatic controls for household use. AVANT-PROPOS Le présent amendement a ete etabli par le comite d.etudes 72 de la CEI: Commandes automatiques pour appareils domestiques.

定价: 410元 / 折扣价: 349

在线阅读 收 藏

FOREWORD This amendment has been prepared by IEC technical committee 72: Automatic controls for household use. AVANT-PROPOS Le présent amendement a été établi par le comité d'études 72 de la CEI: Commandes automatiques pour appareils domestiques.

定价: 182元 / 折扣价: 155

在线阅读 收 藏

Information technology - Multimedia content description interface - Part 1: Systems AMENDMENT 1: Systems extensions

定价: 1593元 / 折扣价: 1355

在线阅读 收 藏

1. Scope and Object 1.1 Scope This standard is applicable to stationary or portable, single- phase or polyphase, air-cooled isolating and safety isolating transformers, associated or otherwise, having a rated supply voltage not exceeding 1000 V alt

定价: 2184元 / 折扣价: 1857

在线阅读 收 藏

Information Technology - Multimedia Content Description Interface - Part 1: Systems AMENDMENT 2: Fast Access Extension

定价: 0元 / 折扣价: 0

在线阅读 收 藏

1. Scope This standard covers ballasts, excluding resistance types, for use on a.c. supplies up to 1 000 V at 50 Hz or 60 Hz, associated with tubular fluorescent lamps with or without pre-heated cathodes operated with or without a starter or starting d

定价: 1456元 / 折扣价: 1238

在线阅读 收 藏

This PDF includes Technical Corrigenda 1 and 2 Information Technology - Multimedia Content Description Interface - Part 3: Visual - AMENDMENT 1: Visual extensions

定价: 1138元 / 折扣价: 968

在线阅读 收 藏

NONE

定价: 546元 / 折扣价: 465

在线阅读 收 藏
169 条记录,每页 15 条,当前第 1 / 12 页 第一页 | 上一页 | 下一页 | 最末页  |     转到第   页