求翻译：研究防守技术的封盖、抢断、防守篮板、造对手失误、防守犯规、失分等方面存在的一些问题，然后对这些问题进行分析是什么意思？

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Study the cover defense technology, steal, and a defensive rebounds, making your opponent make mistakes, and a defensive foul, loss, there are problems, and then to analyze these issues

The research defense technology seals covers, snatches breaks, the defensive backboard, makes the match fault, the defense violates a regulation, loses points some questions which and so on the aspects exist, then carries on the analysis to these questions

Study on defensive technique of capping, tackling, defensive rebounds, to make opponents errors, a defensive foul problems, losing aspects, and then to analyse these issues

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