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单词 blockhouse
释义 blockhouse
\ˈ ̷ ̷ˌ ̷ ̷\ noun
Etymology: block (I) (impediment) + house
1. obsolete : a detached fort blocking or covering access (as to a landing, bridge, or pass)
2.
 a. : a structure of heavy timbers or logs formerly used for military defense having its sides loopholed and pierced for gunfire and often an upper story projecting over the lower or so placed upon it as to have its sides make an angle with the sides of the lower story, thus enabling the defenders to fire downward and in all directions
 b. : a small defensible wood, iron, or concrete building usually partially dug in that gives protection from enemy fire and provides a firing base for defense
3. : a house of squared logs
4. : a building usually more or less hemispherical and formed of reinforced concrete as a shelter against and observation point of certain dangerous operations likely to be accompanied by heat, blast, or radiation hazard
[blockhouse 2a]
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更新时间:2024/11/10 18:39:45