zentao/extension/ipd/action/ext/lang/zh-cn/traincourse.php

<?php
$lang->action->objectTypes['traincourse']   = '课程';
$lang->action->objectTypes['traincategory'] = '课程分类';
$lang->action->objectTypes['traincontents'] = '课程内容';
$lang->action->objectTypes['practice']      = '实践库';