[6-27]Itis possible,and sometimes necessary,to strengthen the deck of a vessel for carriage of deck cargo by ___.有时,为了在甲板装货,有可能或必须通过()来加强甲板承荷能力
A.
placing bunker on the deck 在甲板上堆放燃煤
B.
building a stage on which to place the cargo 在甲板上搭个台,用来装甲板货
C.
welding steel feet to the deck,on which the cargo is placed 在甲板上焊一些支架,用来装甲板货
D.
erecting vertical pillars under the deck to support the cargo 在甲板下立一些垂直的柱子撑住甲板货