Thus a proportion of the totalvolume of any sediment, loose or cemented, consists of empty space.
因此，无论是疏松或胶结，沉积物总体积都有一部分是由空隙组成的。
2
The totalvolume of water in the saturated sample must therefore be thought of as consisting of water that can, and water that cannot drain away.
"因此，人们认为充满水分的岩石样本的总含水量既包括可能会渐渐流失的水分，也包括不会流失的水分。
3
Even setting aside the unproven hints of ancient oceans, the extent of the outflow channels suggests that a huge totalvolume of water existed on Mars in the past.