стерильний
accident-free flying / mishap-free flying
mishap-free flying / accident-free flying
contamination avoidance
contamination control
contamination control area
contamination control line
contamination control point
contamination forecast
contamination zone
extent of contamination
hazardous levels of NBC contamination
liquid contamination
radioactive contamination
residual contamination
fumes contamination
contamination control point (CCP)
contamination meter
water contamination
electro-magnetic contamination
noise contamination
contamination
gas contamination
volumetric contamination
effective time of contamination
contact-free war
fallout-free
free fall
free fall air drop
free fire zone
free mine
free naval control of shipping
free net