This study investigates and quantifies some possible sources affecting the position of impact points of small caliber sp......

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......

Based on the study of the relation between the dynamic imbalance degree and the product of inertia, a new static test me......

研制了一种大口径枪弹自动上弹系统，能够与大口径枪弹分解机匹配，取用大口径枪弹分解机的推弹杆往复运动作动力，驱动带螺旋槽的转轴转......