英语语法分析

The prestress method should be developed in the study of the rotor dynamics problems.

预应力法在转子动力学问题的研究中可进一步拓展。

In the prestress design of PC continuous rigid frame bridge, there are two problems in dire need of solving.

在预应力混凝土连续刚构桥预应力设计中，有两个问题急需要解决。

Then the internal relations between the prestress of membrane, pretension of cable and cable form were found.

获得了膜的各向预应力、索的预拉力和索的形状之间的内在联系。