CST DS中AC Simulation Task的選項

CST DS 中 AC Simulation Task 中，有一個’Circuit Simulator’欄，如圖所示.這其中的CST,DS APLAC FULL APLAC,這三個怎么選擇呀?在help 文件中就是下面簡單的說的
The ’Circuit Simulator’ frame offers the selection of the circuit simulator to be used. 都是具體怎么選擇?

下次記得說明你的軟件的版本，CST DS 2011已經不是這個界面了。
CST DS 2010幫助文件《AC Simulation Task》：
Circuit Simulator frame
CST: Select this option to use CST's circuit simulator for the execution of this task.
DS APLAC: Select this option to use APLAC for CST DESIGN STUDIO for the execution of this task.
Full APLAC: Select this option to use an installed full version of APLAC Simulator for the execution of this task.
The results for this task do not depend on the version selected. A circuit simulator is only used when circuit elements are present in the design.
具體解釋請參考上面幫助文件的完整內容。

謝謝你，我用的是09版本的，下次記得了11版還真不一樣