shellproof การใช้

The walls were constructed to shellproof standard of.
A thick-walled variant was introduced to a shellproof standard; it was larger externally and had walls ( ) thick.
Inside the p were trenches, covered walkways and shellproof underground shelters roofed with strong timbers, packed earth and galvanised roofing iron.
For this purpose, the Austrians erected 1861 the shellproof Citadel Barracks; the small side building was used as casino and kitchen.
Each wall is about long and it was generally built to the bulletproof standard of thick, although shellproof versions with walls around thick were also built such as the granite and concrete examples on the Cowie Line in Kincardineshire and along the upper Thames in Oxfordshire.