一(yi)坡三檔主(zhu)要有氣(qi)動(dong)(dong)阻車(che)器、氣(qi)動(dong)(dong)臥閘、氣(qi)動(dong)(dong)擋車(che)梁及氣(qi)控(kong)系統(tong)組(zu)成，可選用氣(qi)動(dong)(dong)阻車(che)器、氣(qi)動(dong)(dong)臥閘、氣(qi)動(dong)(dong)擋車(che)梁進行單臺或多(duo)臺組(zu)合(he)，由氣(qi)控(kong)系統(tong)實現閉鎖(suo)聯動(dong)(dong)。