例句與造句

1. among the six models, model a and model b can be used to study the vehicle stability and curve negotiation under different track situations . model c and model d can be used to carry out the stability, dynamic curving behavior and ride comfort of the high-speed passenger car . model e and model f are three-dimension train dynamic models which consist of three cars ( head car, intermediate car and tail car )
   所建立的6種動力學(xué)模型中，模型a和模型b可用于研究不同軌道條件下車輛的運動穩(wěn)定性及動態(tài)曲線通過性能；模型c和模型d可以用來研究車輛的運動穩(wěn)定性、動態(tài)曲線通過性能及運行平穩(wěn)性；模型e和模型f是列車系統(tǒng)動力學(xué)分析模型，都是由三節(jié)車組成的列車單元，三車列車模型作為一個最小的列車單元，包含了頭車、中間車和尾車，已能夠反映整個列車的動力學(xué)特性。
2. It's difficult to find tail car in a sentence. 用tail car造句挺難的