于是想到将微观凸包非光滑(金刚石)和宏观凹坑非光滑复合来设计钻头，如此可以实现高效耐磨的目的。
Thus it is conceived that the bit can be developed by coupling with micro convex non-smooth material (diamond) and macro smooth pit, which may lead to the high efficiency and strong wear.
最后一个片段有一个非零的片段偏移字段，将它与未碎片化的包区分开。
The last fragment has a non-zero Fragment Offset field, differentiating it from an unfragmented packet.
其他的非db2自动提供的，而又能提供谓词传递闭包的本地谓词。
Additional local predicates that are not automatically provided by DB2 that can provide predicate transitive closure.
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