rigid tube meaning in Chinese

硬管

Test methods for rigid tubes used for electrical insulation
刚性电绝缘管试验方法
Standard test methods for rigid tubes used for electrical insulation
电绝缘用刚性管的标准试验方法
The connection line between the load cell and pressure measuring device is a rigid tube for direct assembly and a flexible tube for other kinds of assembly
连接压力计和压强测量仪器的连接线是一根能直接装配的刚性管以及一根用于其它安装类型的软管。
For simplicity , these assumptions are followed in the simulation : 1 ) the coronary artery is modeled as rigid tube with constant cross section ; 2 ) the blood is assumed as viscous incompressible newtonian fluid without weight ; 3 ) the blood flow is developing laminar and becomes fully developed at far downstream
实际生理条件下，血液是粘弹性流体，但据文献表明，只要血管直径不太小，血液粘弹性对流动的影响不大，可以忽略不记，本文也吸收了这一结论以简化非关键过程，以提高工作效率。