The model can simulate operation conditions of the tunnel and solve key technical problems of ventilation shaft.

该模型通可以较好地模拟运营工况和解决通风风井部位的关键技术问题。

youdao

The key technical problems of the Stake-Frame that improve the construct quality and promote the working efficiency in the practical projects are needed to solve urgently.

如何在提高桩工机械施工质量的基础上，还能够大幅度地提高工作效率已成为在工程实际中桩工机械亟待解决的关键技术问题。

youdao

To solve these key problems, it is essential to carry out high speed wind tunnel tests and deal with testing technical problems thereof.

要解决这些关键气动力问题，必须进行一系列相关的大型高速风洞试验，以及解决相应的试验技术问题。

youdao