Pipe bends for rainwater pipes of circular cross - section ; testing 圆形截面雨水管用弯管.试验
Numerical simulation on power - law fluid flow in helical pipes with circular cross - section 螺旋管道内幂律流体流动数值模拟
Effect of torque on the elastic buckling of 3d spatial thin rods with circular cross - sections 扭矩对三维空间圆截面曲杆弹性屈曲的影响
Experimental studies on measurement of flow - rate based on maximum velocity on circular cross - section 用圆管中最大流速测量流量的实验研究
Plastic drums - non - removable head tight head circular cross - section drums with a nominal capacity of 20 l to 120 l 塑料圆桶.额定容量为20l至120l圆形截面的固定桶盖
Conduits and fittints for electrical installations . circular cross - section , flexible , supple , heavy , metal conduits of type msb 地区设施导线和连接件. msb型圆截面挠性金属软导线