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.

Kungokuba bagada abuntu bukuvala ngokukhawuleza ulungiso lotshintsho lomtshini Ulawuli: Inkqubo yamajoni emfazwe.
This is because, although personnel may be closed up quickly, the material preparations and changes of machinery and pipe-system-states may be quite involved.

Ithiyori yokufola, iseti yoo-akukhonto oknaye izinto ezikhoyo ezininzi ezilindele ukuncedwa zizibonelelo zeenkonzo. [DIS; IEEE]
Queuing theory, a set of zero or more entities waiting to be serviced by a service facility. [DIS; IEEE]

Le mfuno yale yantlukwano isukela kwinto yokuba isenokuba luqoqosho okanye ngumbutho onokwenzeka ukuze kubekho amanani afunekayo izithuthi ezihamba emhlabeni ezimileyo zilinde ukufika kwemithwalo emikhulu enzima.

The need for this separation arises from the fact that it is neither economical nor organisationally feasible to have the necessary numbers of inland transport vehicles standing by to await the arrival of a large bulk carrier.

