rail jack

jack的翻译中文意思-在线英汉词典 ... rack-type jack 齿条式起重器, 齿杆式千斤顶 rail jack 起道机 railroad jack 铁路举重器 ...

http://www.ptsgi.com/chines... ... "小汽车共乘"," Carpool" "小型千斤顶"," Rail jack" "小型手推车,小担车"," Small trolley" ...