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1·It was covered with moist ponds and marshes, nasty ditches and jungles, chilling and thrilling jails, all around was emitting the stales acid flavor.

那里满是潮湿的池塘和沼泽，令人厌烦的水沟和丛林，寒冷战栗的监狱，四周充满着令人作呕的酸腐味。

2·This paper introduced a new type of differential steering gear equiped with dozer that was made in United Stales, and analysed its mechanism as well as its workingprinciple.

本文介绍了一种新型的差速转向机构，并对该机构的组成、工作原理及使用特点进行了讨论分析。