英语语法分析

In engineering design, the natural axis is located assumably the extreme row which is directed by the moment.

工程设计中，通常认为普通螺栓群弯矩受拉时，中和轴在弯矩指向一侧最外排螺栓处。

The developping trend is discussed assumably in the end. The pollution of automobile epilogue has been doing bad harm to our living space step by step.

汽车尾气中的有害物造成的污染，给人类赖以生存的大气环境带来了越来越严重的危害。