How to add mutil-command line arguments to open chrome in android?

I'm trying to run the chrome with command line argument via adb terminal in android. And it works through writing one flag to /data/local/chrome-command-line, e.g: echo "chrome --single-process" > /data/local/chrome-command-line. Now I want to make chrome running with single-process mode and no sandbox, then I set the flags as follows: echo "chrome --single-process --no-sandbox --no-startup-window" > /data/local/chrome-command-line or echo "chrome --single-process,--no-sandbox,--no-startup-window" > /data/local/chrome-command-line. But it doesn't work because the process of sandbox is still exists.