підземна сапа (див. sap, sapping)
nuclear underground burst
Security Assistance Program (SAP)
sap an agreement
sap support
sap up
sap-head
single sap
single sap with double parapet
single sap with one parapet
underground counter-intelligence network
underground storage pit
underground tank
underground
camouflet underground explosion (e.g. nuclear)
sap
nuclear underground test
contained underground burst