Please see the screenshots draw_10644_1, (also appears in 33780, 33799, 33816, which I can upload as 
well if requested: it seemed excessive for the initial issue).

The unit "degrees" (độ) is not delimited from the number. I don't understand why we're not using a º 
(degree) symbol here, since we are using the % (percentage) symbol. So either we use º and don't 
delimit, or we use "degrees" and delimit. The current situation is incorrect. The percentage sign is 
delimited (incorrect), the degree word is not (incorrect), while the cm units are. Doubly inconsistent.

Please also see impress_878837760, the unit "seconds" (giây) is also not delimited from the number. 
This makes it rather difficult to read.

Unit _names_ should be delimited from numbers, while unit _symbols_ should not: e.g.

15º
15 degrees

15%
15 percent

15"
15 seconds

If we can do this consistently, our interface will appear much more professional, and be easier to read.