中译英，请教高手帮忙翻下，

先后从事机械设计、文档资料管理、工人技能培训等工作。
Successively is engaged in the machine design, documents work and soon material management, worker skill training.
公差与配合。Common difference and coordination.

Have engaged in mechanical design, document information management, worker skills training and so on.
Tolerance and cooperation