detection

n.察觉，发觉；侦察，探测

destructible, destruction, destructive, destructively, destructiveness, desuetude, desultorily, desultoriness, desultory, Det, detach, detachable, detached, detachment, detail, detailed, details, detain, detainee, detect, detective, detective story, detective novel, detector, detente, detention, detention centre, deter, detergent, deteriorate, deterioration, determinable, determinant, determinate, determination, determinative, determine, determined, determiner, determinism, deterrence,