The Han also improved the watchtowers of the Great Wall - making them twostoried to gain a better lookout.
汉朝也改进了长城的了望塔——把它们建成两层来增加更好的看守。
2
Boundary element method to calculate the free surface flow over the plate region of the hanged-plate twostoried intake work is presented in this paper.
本研究利用边界元法求解了悬板分层式引水渠首的悬板区过流问题。
3
They are a pair of identical twostoried colonial military barrack blocks with pitched Chinese tile roofs with tar finish and verandahs with colonnades on the elevations.