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AnnouncementofNewlyApprovedNationalStandardsofP.R.China2000年第2号(总第14号)2000年2月13日序号国家标准编号国家标准名称代替标准号批准日期实施日期1GB775-2000旋转电机定额和性能Rotatingelectricalmachines-RatingandperformanceGB/T755-19872000-01-032000-08-012GB/T4180-2000稀土钴永磁材料PermanentmagneticmaterialofrareearthcobaltGB/T4180-19842000-01-032000…  相似文献   

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AnnouncementofNewlyApprovedNationalStandardsofP .R .China2 0 0 2年第 8号 (总第 44号 )2 0 0 2年 8月 2 8日序号国家标准编号国家标准名称代替标准号批准日期实施日期1GB T 2 38- 2 0 0 2 金属材料线材反复弯曲试验方法Metallicmaterials-Wire -Reversebendtest GB T 2 38- 1 9842 0 0 2 - 0 7- 1 5 2 0 0 2 - 1 2 - 0 12GB T 1 4 99.3 - 2 0 0 2 钢筋混凝土用钢筋焊接网Weldedsteelfabricfortherein…  相似文献   

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AnnouncementofNewlyApprovedNationalStandardsofP .R .China2 0 0 0年第 5号 (总第 17号 )2 0 0 0年 5月 16日序号国家标准编号国家标准名称代替标准号批准日期实施日期1GB T2 2 1 -2 0 0 0 钢铁产品牌号表示方法Notationsfordesignationsofironandsteel GB T 2 2 1 -1 9792 0 0 0 -0 4 -1 1 2 0 0 0 -1 1 -0 12GB T 2 2 3.8-2 0 0 0钢铁及合金化学分析方法氟化钠分离 -EDTA滴定法测定铝含量Methodsforchemic…  相似文献   

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AnnouncementofNewlyApprovedNationalStandardsofP .R .China2 0 0 1年第 2号 (总第 2 6号 )2 0 0 1年 2月 9日序号国家标准编号国家标准名称代替标准号批准日期实施日期1GB 1 576 - 2 0 0 1 工业锅炉水质Waterqualityforindustrialboilers GB 1 576 - 1 996 2 0 0 1 - 0 1 - 1 0 2 0 0 1 - 1 0 - 0 12GB/T 2 998- 2 0 0 1定形隔热耐火制品体积密度和真气孔率试验方法Shapedinsulatingrefractoryproducts…  相似文献   

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AnnouncementofNewlyApprovedNationalStandardsofP .R .China2 0 0 0年第 1 2号 (总第 2 4号 )2 0 0 0年 1 2月 2 0日序号国家标准编号国家标准名称代替标准号批准日期实施日期1GB/T 2 2 3 .34 - 2 0 0 0钢铁及合金化学分析方法铁粉中盐酸不溶物的测定Methodsforchemicalanalysisofiron ,steelandalloyThedetermi nationofhydrochloricacid -insolublecontentofironpo…  相似文献   

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20 0 1年第 5号 (总第 2 9号 )2 0 0 1年 5月 1 7日序号国家标准编号国家标准名称代替标准号批准日期实施日期1GB/T 9770 - 2 0 0 1 普通用途钢丝绳芯输送带Steelcordconveyorbeltsforgeneraluse GB/T 7984- 1 9872 0 0 1 - 0 4 - 2 92 0 0 1 - 1 0 - 0 12 GB/T 1 6656 .45 -2 0 0 1工业用自动化系统与集成产品数据表达与交换第 45部分 :集成通用资源 :材料IndustrialautomationsystemsandintegrationProductdatarepre sentat…  相似文献   

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1999年第10号(总第10号)1999年10月19日序号国家标准编号国家标准名称代替标准号批准日期实施日期1GB/T4857.14-1999包装 运输包装件 倾翻试验方法Packaging-Transportpackages-topplingtestmethodGB/T4857.14-1989...  相似文献   

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1999年第11号(总第11号)1999年10月19日序号国家标准编号国家标准名称代替标准号批准日期实施日期1GB/T232-1999金属材料 弯曲试验方法Metallicmaterials-BendtestGB/T232-19881999-11-012000-08-012GB/T235-1999金属材料 厚度等于或...  相似文献   

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序号国家标准编号国家标准名称代替标准号批准日期实施日期1GB T1 974- 2 0 0 1 结构钢低倍组织缺陷评级图Standarddiagramsformacrostructureanddefectofstructuralsteels GB T 1 979- 1 980 2 0 0 1 - 1 2 - 1 72 0 0 2 - 0 5 - 0 12GB T 2 2 75 - 2 0 0 1 镁砖Magnesiarefractorybricks GB T 2 2 75 - 1 986 2 0 0 1 - 0 7- 1 72 0 0 2 - 0 5 - 0 13GB T 2 60 8- 2 0 0 1 硅砖Silicarefractirtbrucjs GB …  相似文献   

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1999年第 12号 (总第 12号 )1 999年 1 2月 2 1日序号国家标准编号国家标准名称代替标准号批准日期实施日期1GB T 3 0 0 0 -1 999致密定形耐火制品透气度试验方法Denseshapedrefractoryproducts -determinationofpermeabilitytogasesGB T 3 0 0 0 -1 982 1 999-1 1 -2 3 2 0 0 0 -0 5-0 12GB T 4 2 70 -1 999技术文件用热工图形符号与文字代号Graphicalsymbolsandlettercodesforthermalengineeringinthe…  相似文献   

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This study examines the perceptions of educators about the Drug Abuse Resistance Education (D.A.R.E.) program, based on the results of a statewide survey among 286 fifth and sixth grade teachers and principals. Educators gave their highest ratings to teacher/officer interaction, the role playing exercises, and the graduation ceremony. Ratings of overall program quality and the impact of the program on students were both high. Block regression analysis was used to examine factors predictive of educators' views of D.A.R.E. D.A.R.E. program elements were the most important factors explaining variance in educators' ratings of over-all program quality and program impact on students. Altogether, 54 percent and 38 percent of the variance in both dependent variables were explained. The results are discussed in terms of the important role teachers and principals play as stakeholders in prevention education.  相似文献   

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Despite B. F. Skinner's prominence, his impressive written corpus, and the many authoritative presentations by others of his approach to psychology, the fundamentals of Skinner's psychology have never been addressed in any comprehensive manner. In this article, the authors take steps to fill this gap by synopsizing Skinner's written corpus into 12 fundamental points that seem to characterize his behaviorism. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

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Diversion colitis is thought to result from nutritional deficiencies secondary to fecal diversion. Symptoms include hemorrhagic purulent rectal discharge, abdominal pain, and tenesmus. 5-Aminosalicylic acid (5-ASA) and N-butyrate enemas have been reported to help this condition non-spinal cord injury (SCI) patients. We report the case of a 49-year-old C6 ASIA B tetraplegic man who had received colostomy because of intractable ileus 10 years earlier. He presented with a 2-week history of rectal pain and bleeding. Abdominal and rectal examination on admission were unremarkable. Colonoscopy showed a partial stricture 70cm proximally to the rectum. The colonic mucosa appeared granular and friable with evidence of linear ulceration. Histopathologic study was consistent with colitis. The patient developed fever, abdominal distention, and extensive retroperitoneal air after endoscopy, suggesting colonic perforation. He was treated with daily 5-ASA suppository and total parenteral nutrition for the presumed diagnosis of diversion colitis, and intravenous antibiotics for perforated colon. After 6 weeks of treatment with 5-ASA, the patient had decreased rectal pain and bleeding. This experience suggests that diversion colitis may be a cause of abdominal discomfort in SCI patients and that 5-ASA may be used in the management of diversion colitis.  相似文献   

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现在采用的小方坯连铸机的切割设备,分为机械剪和火焰切割机,机械剪包括电动机械剪和液压剪,而液压剪又有平剪刃和45°剪刃之分,火焰切割机则分为有动力传动和无动力传动的火焰切割机,对这些切割设备的结构特点和优缺点均进行了分析介绍。  相似文献   

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《Acta Metallurgica》1989,37(3):803-811
Acoustic measurements have been performed in the vicinity of the h.c.p.-f.c.c. phase transition in cobalt. The main results are the following: At low frequency (~ 1 Hz), a high transitory internal friction peak is observed. It is shown that this internal friction is a function of T/vT temperature rate, v vibration frequency) but is not proportional to T/v. This behavior is explained in the framework of a recent model based on a Clausius-Clapeyron-like equation expressing the coupling between stress and phase transition; At medium (~5 KHz) and high (~ 20 MHz) frequencies, the transitory internal friction becomes negligible. However, a small peak appears accompanied by an elastic modulus decrease. It is shown that these anomalies are related to the shear modes parallel to the transformation plane. Thus, they might be related to the motion of the partial dislocations composing the h.c.p.-f.c.c. interface.  相似文献   

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