In this task, you are given a sentence or phrase in English. You must translate it to Xhosa in a way that is equivalent in terms of meaning and grammatically correct.

A simulation that uses a discrete model. [DIS; IEEE]
Yimfaniso esebenzisa imodeli yegqiqo. [DIS; IEEE]

About 15 to 20 air propellers would then have to be installed on a 5,000-ton air-cushion vehicle.
Malunga neshumi elinesihlani ukuya kumashumi amabini abaqhubi bomoya bangafakwa kwiitoni ezingamawaka amahlanu ezithuthi zokhuselo-moya.

A vessel in which the propelling machinery is driven by steam.

Isikhephe apho umatshini wesiqhubi uqhutywa ngumphunga.