2) problem and obstacles
问题与阻力
3) undamped problem
无阻尼问题
4) "eight resistances" problem
"八电阻"问题
5) dynamic problem
动力问题
1.
On the discussion and the outlook on the current situation for the dynamic problems of the foundation pile;
关于桩基动力问题研究现状讨论及展望
2.
In this paper,a hybrid method is developed to real-timely solve dynamic problems governed by second partial differential equation(PDE).
提出了一种把减基法嵌套在Newmark法中快速求解动力问题的混合算法。
6) Mechanical problem
力学问题
1.
The significance of choosing the proper coordinate system in solving the mechanical problems is illustrated through analyzing incorrect solutions.
通过错题分析,说明在解决力学问题中坐标系的恰当选择的重要性。
2.
The principles and methods of choosing the inertial frames of reference in solving the mechanical problems are analyzed.
通过例题,分析了在解决力学问题中惯性参考系的选取原则和方法。
补充资料：肺循环阻力(或全肺阻力)
肺循环阻力(或全肺阻力)
pulmonary circulation resistance
血液在肺部血管内流动时和血管壁之间的摩擦力和血液内部的摩擦阻力。肺动脉管壁较薄，分支短而管径大，故肺动脉的可扩性较大，对血流的阻力很小，仅0.12PRU(外周阻力单位)。肺循环动脉部分总的阻力和静脉部分总的阻力相等，故血液流动时在动脉部分的压力降落和静脉部分的压力降落相等。
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