论文部分内容阅读
中低压锅炉用高频电焊钢管焊接质量的控制
【机 构】
：
劳动厅锅炉压力容器技术检验所
【出 处】
：
焊接技术
【发表日期】
：
2000年1期
其他文献
1 工艺原理 椭圆封头可将其椭圆曲线简化成以σ为圆心,以oc为半径的圆弧bcd和分别以m、n为圆心以ma或ne为半径的圆弧ab、ed所组成(见图1),大圆弧与小圆弧分别相接于点b、d
Major Gene Identification and Quantitative Trait Locus Mapping for Yield- Related Traits in Upland C
Segregation analysis of the mixed genetic model of major gene plus polygene was used to identify the major genes for cotton yield-related traits using six gener
结核性腹膜炎是临床上常见的腹腔结核病，国内发病率为0．44％～0．55％。治疗大多为单纯西医抗结核药物治疗，效果不很理想。笔者应用离子导入自拟中药消腹汤治疗结核性腹膜炎62例，收到较好
γ-Gliadins are an important component of wheat seed storage proteins.Four novelγ-gliadin genes(Gli-ng1 to Gli-ng4)were cloned from wheat(Triticum aestivum)and
叙述了二氧化碳气体保护焊在FZQ1380型附着自升式塔机中的推广使用过程,由焊接工艺评定确定焊接工艺参数,通过加大焊工培训力度,消除焊接质量缺陷,最终获得满意的焊接质量,满
目的观察同步放化疗治疗中晚期非小细胞肺癌（NSCLC）的疗效和毒副反应。方法入组不能手术的中晚期NSCLC 63例,随机分为两组。序贯组33例,化疗2周期后再行放疗;同步组30例,放化疗
Full nonhost resistance can be defined as immunity,displayed by an entire plant species against all genotypes of a plant pathogen.Interesting biological questio
Flor Revisited （Again） eQTL and Mutational Analysis of NB-LRR Mediated Immunity to Powdery Mildew in
Genes encoding early signaling events in pathogen defense often are identif ied only by their phenotype.Such genes involved in barley-powdery mildew interaction
Apart from the long-term effects of climate change, the frequency and severity of extreme weather events have been increasing. Given the risks posed by climate