%{REQUEST_URI} is the requested URL, which will be appended to /tech to get the correct URL. [L,R=301] ends this rewriteblock ([L]) and tells apache to redirect ([R=301])
All together:
RewriteEngine On
RewriteCond %{HTTP_HOST} ^tech[COLOR="Red"]\\[/COLOR].tbreak[COLOR="Red"]\\[/COLOR].com$ [NC]
RewriteRule .? http://www.tbreak.com/tech%{REQUEST_URI} [L,R=301]