You activate the code by adding an onload method to the tag, which starts the code right after the page finishes loading.
可以通过向标记添加onload方法来激活代码，此方法会在页面加载之后立即启动代码。
2
And then call this methodafterloading the ComboBox.
然后调用此方法加载后，该组合框。
3
After the analysis of loading process, a loading curve is simulated by math method, which fixes on the most press value that can be endured by elbow-bar framework.