1. The paper briefly introduces the structure, technical parameters arid operating principle of a new high-effective self-dump semitrailer. 简要介绍了一种新型的、高效的自卸半挂车的结构、技术参数及工作原理。
2. The old Chevy pickup looked small beside a huge semitrailer rig roaring into Winterset, spraying a wave of road water over the last cowboy. 那辆旧雪佛莱小卡车在一辆巨大的拖车旁边显得很小，那拖车咆哮着开向温特塞特，溅起一阵水珠从那最后的牛仔头上洒过。
3. First of all, the dissertation analyzed the calculating process of the semi-trailer body roll angle when the vehicle turning by the tractor-semitrailer simplified mathematical model. 首先，本文通过建立半挂汽车列车简化的数学模型，分析了在转弯时半挂车车身侧倾角的计算过程。
英英解释
n.
1. a trailer having wheels only in the rear; the front is supported by the towing vehicle
