The perplexing problems of identifying the amount of SO42 - in dyes are successfully solved.
解决了分析染液中微量硫酸根离子的难题。
The greatest achievements often have their origins in the most complicated and perplexing problems.
最伟大的成就往往起源于最复杂和令人困惑的问题。
In many cases, individual ability alone has been difficult to fully address the various perplexing problems and take effective and efficient action.
在很多情况下,单靠个人能力已很难完全处理各种错综复杂的问题并采取切实高效的行动。
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