Units

Another problem is that ``3cm.'' is spoken as ``drittens Zentimeter''.
The following abbreviations are not recognized:

• ``Wh'' for ``Wattstunden'' (although there is an entry in ``ger_abbr_masseinheiten_tab'')
• ``min'' for ``Minuten'' (although there is an entry in ``ger_abbr_masseinheiten_tab'')
• ``ha'' for ``Hektar'' (although there is an entry in ``ger_abbr_masseinheiten_tab'')
• ``km/h'' for ``Kilometer pro Stunde'' (although there is an entry in ``ger_abbr_masseinheiten_tab'')