Drilling practice show that formation and bit types are tow important factors effected drilling.
钻井实践表明,地层因素和钻头类型是影响钻井过程的两个十分重要的因素。
The practice show that the system have the special feature of simple structure and fast calculating.
实际应用表明,该系统具有结构简单,运算速度快等特点.。
Results of practice show that the design fits the demands and the system is safe with high reliability.
实践表明,该系统设计符合要求,系统运行安全、可靠。
In fact, there are some very old books that show this as the average, the sum divided by two arithmetic mean, but the modern practice is to use the geometric mean.
事实上,一些很老的书籍上,平均的定义就是算数意义的,总的来说被分为两种算数意义,但现代我们多用几何意义。
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