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.

Kwinqanawa yokuthutha ipetroyile yamakhulu amathathu amawaka eetoni, umzekelo, malunga namashumi amathandathu eepesente exabiso elipheleleyo enzelwa ingxelo sisitili nokwenziwa kwaso kwakunye nokubunjwa kwisiqu senqanawa.
For a 300,000-ton tanker, for example, about 60 % of the total costs are accounted for by the steel and its processing and fabrication into the hull.

AWONA MALUNGU ESAKHIWO SESIQU SENQANAWA.
MAIN MEMBERS OF THE HULL STRUCTURE .

Ukuphinda ngokufutshane ii-engile phakathi ko TN no Mn yi-engile yeendidi ngelixesha i-engile phakathi ko MN nendawo engaboniswanga yenaliti xa ingaphantsi kwempembelelo yesikhephe samasimi kamazibuthe yi-engile yokuphambuka.

In recapitulation, the angle between TN and MN is the angle of variation, while the angle between MN and the deflected position of the needle when under the influence of the boat's magnetic field is the angle of deviation.