例句與造句

1. State of railway vehicles - passenger area - part 7 : loading doors - type of construction : sliding plug doors , sliding doors , roller loading doors , folding doors
   鐵路車輛的狀況.乘客區(qū).第7部分:裝貨門.結(jié)構(gòu)類型:推
2. State of railway vehicles - passenger area - part 6 : end doors doors between coaches - type of construction : folding doors , sliding doors , roller loading doors , hinged doors
   鐵路車輛的狀況.乘客區(qū).第6部分:客車之間的后門門
3. It's difficult to find loading door in a sentence. 用loading door造句挺難的