Previous time step macros are shown only for temperature in Table 5.2.1, but can be extended to all of the variables.

在表5.2.1中仅列出了温度的前一次步长的求法，但是可以扩展到其它的变量中去。

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The M1 suffix can be generally applied to the macros in Table 5.2.1 to allow access to the value of the variable at the previous time step (i. e.

读写前一步长下的时间在表5.2.1里的宏中加入下标_M1就可以得到前一次步长时间下（t-⊿t）的变量的值。

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As well as the generic startup improvements of the previous section there is another step you can take which improves the startup time when running in debug mode.

另外，对于前面部分中介绍的关于启动的改进，当在调试模式中运行时，您可以采取其它步骤来改进启动时间。

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