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.

Buoyancy tanks or compartments may be filled with a buoyant material which must not be adversely affected by oil.
Iitanki okanye iikhompathimenti zamandla okudada zingagcwaliswa ngezinto zokudada ekungafuneka zichaphazeleke ngokungalunganga yi-oyile.

They were faster than the smaller T.B.s and soon usurped their role and replaced them.
Zazibaleka ukudlula ezo T.B.S kwaye emva koko zaya zathabatha indawo yazo.

The next stage of training is to blend the 'oars forward', the 'catch and pull through' and the 'recovery' into an even, rhythmic motion, without sacrificing the force of the catch, the drive of the pull through and the speed of recovery.
Ibakala elilandelayo loqeqesho kukudibanisa 'amaphini phambili,' 'ukubamba uphinde utsale' noku 'yeka' kwindawo ethe tyaba, ngentshukumo efanayo, ngaphandle kokubamba ngamandla, itsho itsale okanye ihambe nje kakuhle ngesantya esihlileyo kwanesimiselweyo.