Based on fore theory and some tentatives,theory about distribution of water velocity in pipe of arcuate section is researched.
将整个断面分为弓形圆弧断面和渗流断面。
Discussion of current collection method between disk-pantograph and lin ear contact-wires;
圆盘形受电弓与直线形接触线受电方式探讨
本站部份资料来自网络或由网友提供,如有问题请速与我们联系,我们将立即处理!
版权所有©四级英语单词 网站地图 陇ICP备2023000160号-4
免责声明:本站非营利性站点,以方便网友为主,仅供学习。