Usted buscó: supervised (Inglés - Xhosa)

the work has to be supervised by an experienced officer.
umsebenzi mawugadwe ngumphathi onolwazi.

this is so that it can be placed where it can be supervised conveniently by the officer of the watch.
le nto yenzelwa ukuba ibekwe kwindawo apho inokonganyelwa ngokuncedayo ngumphathi wabalindi.

because of the large number of machines and units that had to be supervised there were of course an enormous number of measuring points, the data from which had to be continuously recorded.
ngenxa yenani elikhulu loomatshini kwakunye nezinto ekufuneka ukuba zijongwe kuye kwakho ngokuqinisekileyo inani elikhulu leencam zokulinganisa, ulwazi olufuneka lubhalwe phantsi.