操作系统用的进一步理解各种算法的性能，并且进一步理解各种页面替换算法的优缺点。
Operating system with the further understanding of algorithms, and to further understanding of pages replacement algorithm are discussed.
在并发控制设计中，分析比较了各种并发控制算法，尤其是对采用的操作转换算法(OPT)做了重点描述。
Mean a while the underlying principles of three typical kinds of concurrency control, those algorithm based on OPT (Operation Transpose) are studied deeply.
给出测量自由落锤的加速度换算高应变试桩的动力的简易法的基本原理、测试操作与工程应用。
The basic principle of simple high strain pile test method transformed from measured free fall of drop hammer is given in this paper.
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