The submission of a proposal, report, or request to someone is when you send it to them formally so that they can consider it or decide about it. A submission is also the proposal, report, or request sent in this way.
双语例句
例： Diploma and certificate courses do not normally require the submission of a dissertation.
学位课程及证书课程一般不要求提交毕业论文。
例： A written submission has to be prepared.
必须准备提交一份书面文件。