有点担心，这样正常吗？10月初提交申请，10月底交完了体检和所有补充材料，到现在两个月了没电调也没下签
我看到10月初移民局有过一次罢工，会是那时候的影响吗？想知道近期提交学生签的都是什么情况
When did the semester start? If the semester does not commence until March 2017 they will not process your application now because once they’ve approved your visa you can come to Australia much earlier than the start of the semester.
The Department of immigration does not recommend visa applications more than three months prior to the commencement of the course.
谢谢回复！我已经开学了，而且人已经在澳洲了，现在拿着bridging签证……
我情况有点特殊。我入学之前在这里工作了一段时间，拿的是485签证，然后有读phd的机会我就读了。因为485签证允许工作和学习，当时就暂时没有申请学生签。年底485签证到期，我必须申请新学生签来完成学业，就在10月提交了申请。
申请前请学校开了新的COE，资金证明是奖学金，应该也没有问题。提交后过了一周左右，要求补充材料Form 80 (personal particular)，Form 1221 (Additional personal particular)和详细研究计划，都在期限内一一提交了。
Form 1221 is used for security vetting, this is usually done through ASIO and national security agencies, it might have something to do with the field of your PhD studies, i.e., if it is in relation to a sensitive area that is of particular national interest to Australia. You have lawful status in Australia, so just have to be patient.