Development on screw ' s surface craft to resist wear of expeller 螺旋榨油機(jī)榨螺表面抗磨工藝的研究現(xiàn)狀
The future may even promise a visit from a mars rover ? but the surface craft would need luck to be on site at exactly the right time to witness one of the occasional flow events 未來甚至可能用火星登陸器來證實(shí)但是這種地表航行器需要很大的運(yùn)氣才能在恰當(dāng)?shù)臅r間落在恰當(dāng)?shù)牡攸c(diǎn)以便目擊一次偶然淌過的水流。
Firstly , this paper gives an introduction about wing - in - surface crafts and their development state so far , then analyzes and describes their special stability and control problems , at last presents an outlook about their application perspectives 首先介紹了地效飛機(jī)的一般特點(diǎn)和發(fā)展現(xiàn)狀,然后分析和描述了該類飛行器特有的穩(wěn)定性問題以及控制特點(diǎn),最后展望了它的應(yīng)用前景。