What are the differences between:
the inflow and outflow channels
the inflow and the outflow channels
the inflow and ouflow channel
the inflow and the outflow channel
Are they all correct?
In German there are differences between,
der Ein- und Auslaufkanal
der Einlauf- und der Auslaufkanal
die Einlaufkanäle und Auslaufkanäle
The first example talks about one channel, which can used for inflow and outflow, the second about 2 channels (one for each) and the last example talks about more than one of each. However,
- der Einlauf- und Auslaufkanal
is ambiguous in my opinion.
How is it in English?