在不同的软件或硬件平台上，外部运算系统接口和应用程序接口是不同的。
External operating system interfaces and application programming interfaces (APIs) are different on different hardware and software platforms.
记住，整形数运算要比浮点数运算快得多，因为处理器可以直接进行整型数运算，浮点数运算需要依赖于外部的浮点数处理器或者浮点数数学库。
Remember, integer arithmetic is much faster than floating-point arithmetic, as it can usually be done directly by the processor, rather than relying on external FPUs or floating point math libraries.
微处理器执行代码指令进行算术运算，内部数据的传递以及与外部设备通信。
A microprocessor executes encoded instructions to perform arithmetic operations, internal data transfer, and communications with external devices.
“联接”对话框中设置选项，可以基于不同运算符指定联接，并且可以指定外部联接。
Join dialog box, you can specify a join based on a different operator, and you can specify an outer join.
利用数值运算的结果研究了由油层内部微粒，外部微粒共存时孔隙度和渗透率变化的动态特征。
And a number of runs were used to study the dynamic characteristics of porosity and permeability changes caused by the migration of external particles and in situ fines.
利用数值运算的结果研究了由油层内部微粒，外部微粒共存时孔隙度和渗透率变化的动态特征。
And a number of runs were used to study the dynamic characteristics of porosity and permeability changes caused by the migration of external particles and in situ fines.
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