Traces are very useful to DB2 technical support representatives who are trying to diagnose a problem that may be difficult to solve with only the information that is returned in error messages.

对于那些DB 2技术支持代表，如果只凭错误消息返回的信息难于解决他们正试图诊断的问题，那么跟踪就非常有用。

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Drilling hole slanting question is a quite complex question in the drilling technology. Hole curving is a difficult technical problem and a formidable matter regarding us which is urgent to solve.

孔斜问题，在钻探技术上是一个比较复杂的问题，孔斜这一课题对于我们是一个重要而又迫切需要解决的技术难题。

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