three way elbow是什么意思

用法例句

This paper discusses the method of three origentations shock dynamics of propulsive shafting by use of ANSYS.

提出了一种基于ANSYS环境的推进轴系三向冲击动力学计算的方法,建立了舰艇大功率推进轴系三向冲击响应的数学模型,并对三向加速度冲击条件下的冲击位移和冲击应力进行了分析。

It is of important significance to study the ultimate bearing capacity of foundation in three-dimensional stress.

研究三向应力状态下条形地基极限承载力问题具有重要的理论和实际意义。

Simulation & study of three directional loads of plow bit on plow;

刨煤机刨刀三向载荷的模拟分析

Methods We retrospectivly selected two types of catheters:one trivalve PICC and one non-trivalve PICC.

方法选用三向瓣膜式PICC及非三向瓣膜式PICC,两种导管的型号均为4Fr。