Now, of course, some of the problems encountered in the late 1970s are history.

当然，上个世纪70年代艺术家们遇到的一些问题已经成为历史。

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In this paper some of the problems encountered in the calculation of the valve spring force are discussed.

本文概述了目前计算气阀弹簧力中所存在的一些问题。

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This includes some of the problems encountered in the design, the choice of components and personal experience and so on.

包括设计中碰到的问题、元器件的选择和个人体会等。

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In the first day of testing, the team encountered some teething problems including the design of some of the clamps holding components in position.

BBC: Key tests in search for life in frozen Antarctic lake

President Clinton encountered some of the same problems during his first year.

CNN: Commentary: Obama and the life of the party