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DIN 18919-1973 景区绿化.植物的维护工作

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【英文标准名称】:Vegetationtechnologyinlandscaping;careofvegetationduringdevelopmentandmaintenanceingreenareas
【原文标准名称】:景区绿化.植物的维护工作
【标准号】:DIN18919-1973
【标准状态】:作废
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【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
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【标准类型】:()
【标准水平】:()
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【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
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Product Code:SAE J2431
Title:The Effects Of Front Mounted Accessories On Air Bag Sensors Andcrashworthiness
Issuing Committee:Body Exterior Committeee
Scope:
Rationale:MIL-PRF-55182H (AMENDMENT 3), PERFORMANCE SPECIFICATION: RESISTORS, FIXED, FILM, NONESTABLISHED RELIABILITY, ESTABLISHED RELIABILITY, AND SPACE LEVEL, GENERAL SPECIFICATION FOR (08 APR 2009)., This specification covers the general requirements for nonestablished reliability (non-ER), established reliability (ER), and space level that are hermetically or nonhermetically sealed fixed film resistors that have a high degree of stability with respect to time under severe environmental conditions. ER resistors have failure rates (FR) that are established at 60 percent confidence ranging from 0.001 percent per 1,000 hours to 1.0 percent per 1,000 hours. Designers are CAUTIONED on using these resistors in high power pulse applications (see 6.10).