mock-up

mock-up
n
1 full-scale experimental model or replica, eg of a machine, made for testing, etc （用作试验等的）实体模型, 实物复制品（如机器等）.
2 arrangement of text, pictures, etc of sth to be printed （印刷文字、 图片等的）版面安排
    do a mock-up of a book cover 安排书的封面版面.

牛津英汉双解词典