Detailed Instructions: In this task, you are given a sentence or phrase in Xhosa. You must translate it to English in a way that is equivalent in terms of meaning and grammatically correct.
Q: Ivithi lingenza okulungileyo kuphela ngaphandle kwexeshana elongeziweyo lomoya onamandla kwitranki.
A:
Punkah-louvres operate correctly only within certain limits of air pressure in the trunking.