1) pipeline back-dragging
管道回拖
1.
Computer simulation can overcome many difficulties such as the lack of ground and money,too many parameters,and time span when simulating the pipeline back-dragging in directional drilling with ANSYS and APDL.
采用ANSYS并结合APDL语言对定向钻的管道回拖过程进行仿真,对回拖管道的应力和变形以及回拖力进行了分析,得出了管道应力沿中性轴径向对称分布,且距离中性轴越远值越大的规律。
3) pipeline float and drag method
管道浮拖法
5) backwater pipe
回水管道
1.
In hydraulic convey ash system of a power plant, the material of backwater pipe has an important eflect on scaling.
电厂水力除灰系统中,回水管道的的材质对管道结垢影响很大。
6) pipeline back pressure
管道回压
补充资料：拖
拖 即托子，或托泥，民间工匠俗称“拖”。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条