21.其他人可以参加仲裁活动吗?答:与劳动争议案件的处理结果有利害关系的第三人,可以申请参加仲裁活动,或者由仲裁委员会通知其参加仲裁活动。22.申请仲裁有时间限制吗?答:当事人应当从知道或者应当知道其权利被侵害之日起六个月内,以书面形式向仲裁委员会申 21. Can other people participate in the arbitration? A: A third person who has an interest in the outcome of a labor dispute case may apply for participation in the arbitration activity or be informed by the Arbitration Commission of his participation in the arbitration. 22. Are there any time limits for applying for arbitration? A: The parties should, within six months from the date of knowing or ought to know that their rights have been infringed, apply in writing to the Arbitration Commission