This function is called when the execution group loads the user exit .lel loadable file.
此函数在执行组加载用户出口 .lel 可加载文件时调用。
LEL is not specific to a particular LayoutManager, although the current version USES GroupLayout to set up the GUI.
LEL并不是专用于某个特定的布局管理器的，但当前的版本使用GroupLayout来创建GUI。
You must use a respirator if the fuel-gas concentration in the work area is 5% more than the lower explosive limit (LEL).
如果工作区域的油气浓度比最低爆炸浓度高出5%，必须使用呼吸器。
LEL detectors are widely applied in air detection of dangerous places such as petrochemical industries and coal mines. Correction factor is a significant factor to affect correct use of instruments.
LEL检测仪广泛应用于石化、煤矿等危险场所的气体检测，其校正系数是影响仪器正确使用的重要因素。
LEL detectors are widely applied in air detection of dangerous places such as petrochemical industries and coal mines. Correction factor is a significant factor to affect correct use of instruments.
LEL检测仪广泛应用于石化、煤矿等危险场所的气体检测，其校正系数是影响仪器正确使用的重要因素。
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