该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
熔铸法生产的钛合金,存在内部偏析,加工性差的缺点。而金属粉末注射成形(MIM)法,容易加工为最终产品形状。但是,对β稳定型Ti-(10%~15%)Mo合金采用混合粉的MIM加工时,要得到相对密
Matrix Converter (MC), a direct AC-AC converter which is capable of bidirectional power flow, unity input power factor control and efficiency improvement. Thus, i
In the face of the complex development environment in 2015,such as the economic slowdown adjustment,continuous slump in export demand,and the increasingly risin
“作文是生活的一部分,它离不开生活.”陶行知先生指出了作文与生活是密不可分的真谛.如果写作是一泓清澈的泉水,那么生活便是取之不尽的源头.写作就是生活,就是去发现生活的