riderless

音標(biāo)發(fā)音

The best known riderless horse was Black Jack.
最有名的無人騎的馬要數(shù)黑杰克。
Their riderless contraption, which sports two extra backwards-rotating wheels and a front wheel that touches the ground in front of the steer axis, can still coast stably.
他們的沒有駕駛者的新發(fā)明，安裝有兩個(gè)反轉(zhuǎn)的輪子，在轉(zhuǎn)向軸之前還有一個(gè)觸地的輪子，這樣在滑行狀態(tài)也能穩(wěn)定。
Internal and overseas research actuality was summarized in this paper, existent problems was analyzed, and then primary development direction of riderless bicycles was presented.
本文綜述了國內(nèi)外的研究現(xiàn)狀，分析了所存在的問題，并指出了自行車機(jī)器人未來的主要發(fā)展方向。