Measurement of fluid flow by means of pressure differential devices inserted in circular cross - section conduits running full - part 2 : orifice plates 用插入满载的圆截面管道中的压差装置测量流体流量.第2部分:节流孔板
Measurement of fluid flow by means of pressure differential devices inserted in circular cross - section conduits running full - general principles and requirements 用插入圆截面管道中的压差装置测量流体流量.一般原理和要求
Venturi measurement of fluid flow by means of pressure differential devices inserted in circular cross - section conduits running full - part 4 : venturi tubes 用插入满载的圆截面管道中的压差装置测量流体流量.第4部分:文杜利
Conduits and fittings for electrical installations . circular cross - section , insulating , pliable , deformable , self - recovering conduits . types icd and ict 电气装置用导管和接头. icd和ict型柔韧的可变形的自恢复的绝缘的圆截面导管
Conduits and fittings for electrical installations . circular cross - section , insulationg , plain , rigid , non - threadable , non - flame propagating conduits . type iro 电气装置用导管和接头. iro型阻燃的刚性的光滑的不带螺纹的绝缘的圆截面导管
Venturi measurement of fluid flow by means of pressure differential devices inserted in circular cross - section conduits running full - part 3 : nozzles and venturi nozzles 用插入满载的圆截面管道中的压差装置测量流体流量.第3部分:喷嘴和文杜利
Measurement of fluid flow by means of pressure differential devices inserted in circular cross - section conduits running full - part 1 : general principles and requirements 用插入满载的圆截面管道中的压差装置测量流体流量.第1部分:一般原理和要求
Measurement of fluid flow by means of pressure differential devices inserted in circular cross - section conduits running full - part 2 : orifice plates iso 5167 - 2 : 2003 ; german version en iso 5167 - 2 : 2003 用插入圆截面管道中的压差装置测量流体流量.第2部分
Measurement of fluid flow by means of pressure differential devices inserted in circular cross - section conduits running full - part 4 : venturi tubes iso 5167 - 4 : 2003 ; german versions en iso 5167 - 4 : 2003 用插入圆截面管道中的压差装置测量流体流量.第4部分
For aspecial example , the steady current was analyzed for circular section of straight conductor , then the distribution of the current , charge and field quantity were discussed 通过分析载流圆截面直导线中稳恒电流这一特例，讨论了电流、电荷与场量的分布问题。
