Plastics drums - non - removable head light head cicular cross - section drums with a nominal capacity of 20 i to 120 i 塑料鼓形桶.标称容量为20 - 120升的非移动盖圆截面鼓形桶
The equilibrium and stability of an elastic rod with circular cross section under the constraint of a cylinder is discussed 摘要讨论受圆柱面约束的圆截面弹性杆的平衡与稳定性。
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
Measurement of fluid flow by means of pressure differential devices inserted in circular cross - section conduits running full - venturi tubes 用插入圆截面管道中的压差装置测量流体流量.文杜利管
Measurement of fluid flow by means of pressure differential devices inserted in circular cross - section conduits running full - orifice plates 用插入圆截面管道中的压差装置测量流体流量.节流孔板
Conduits and fittings for electrical installations . circular cross - section , insulating , pliable , non - flame propagating conduits . type ico 电气装置用导管和接头. icd型绝缘的柔韧的阻燃的圆截面导管
Determination of flowrate of fluids in closed conduits of circular cross - section . method of velocity measurement at one point of the cross - section 圆截面密封管道中液体流量的测定.剖面上一点的速度测量方法
Measurement of fluid flow by means of pressure differential devices inserted in circular cross - section conduits running full - nozzles and venturi nozzles 用插入圆截面管道中的压差装置测量流体流量.喷嘴和文杜利喷嘴
