concatenate
verb [ T ] computing formal or specialized uk/kənˈkæt.ə.neɪt/ us/kənˈkæt̬.ə.neɪt/
使连接,使连锁，把…连成一串
to put things together as a connected series
The filename is a series of concatenated words with no spaces. 文件名是一串单词连接在一起，之间没有空格。